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Movies like The Beast Within

Key Features:
Transformation, Cannibalism, Monster movie, Mystery, Small town, Secret identity, Mutation, Horror, Nudity-moderate, Violence-high
Tone:
serious, gritty, dramatic
Target Audience:
Horror fans, Creature feature enthusiasts, Mystery lovers
Emotional Arc:
Disgust → Dread → Horror

The Beast Within

1982-02-12
The Beast Within Poster - Find Similar Movies

A horrified teen mutates into a crazed cannibalistic swamp creature, and must uncover the terrifying secret identity of his father before his nasty natural tendencies force him to make jambalaya out of the locals.

Genres
Horror, Fantasy, Science Fiction
Cast
Ronny Cox, Bibi Besch, Paul Clemens, R.G. Armstrong, L.Q. Jones, Don Gordon, Katherine Moffat, Logan Ramsey, John Dennis Johnston, Ron Soble
Crew
Philippe Mora, Tom Holland
Rating
5.4(118 votes)
The Beast WithinThe Beast Within
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The Beast Within
5.717

Ten-year-old Willow follows her parents on one of their secret late-night treks to the heart of an ancient forest. After witnessing her father undergo a terrible transformation, she too becomes ensnared by the dark ancestral secret that they've so desperately tried to conceal.



The Terror Within
4.383

Experiments in biological warfare have destroyed all but a few remnants of the human race. Alone in a lab, eight students work feverishly to create a vaccine before they are forced outside in search for food. It is then that the surviving scientists discover creatures mutated by the plague. Now they prepare to do battle against their worst fear: The Terror Within.



Werewolves Within

When a proposed pipeline creates hostilities between residents of a small town, a newly-arrived forest ranger must keep the peace after a snowstorm confines the townspeople to an old lodge. But when a mysterious creature begins terrorizing the group, their worst tendencies and prejudices rise to the surface, and it is up to the ranger to keep the residents alive, both from each other and the monster which plagues them.



Alligator 2: The Mutation

A giant mutated alligator runs riot in a small town after the sewer system washes it into a lake.



DNA
DNA(1997)
4.008

A mad scientist's DNA experiment on the bones of a mysterious jungle creature brings the carnivorous beast to life, and only his former assistant Ash Mattley and CIA operative Claire Sommers can stop it.



Beast
Beast(2018)
6.538

A troubled woman living in an isolated community finds herself pulled between the control of her oppressive family and the allure of a secretive outsider suspected of a series of brutal murders.



The Creature Walks Among Us

Scientists surgically transform the Creature into an air-breather, but being able to live on land is not enough to make him comfortable with humans. Enraged, he turns his wrath on anyone who comes near as he desperately tries to return to the deep-water world where he truly belongs.



Within
Within(2016)
5.4

A widower, his daughter, and his new wife move into a peaceful neighborhood. At first it appears to be a perfect neighborhood but the family quickly realize that something is not right about their new home.



Teddy
Teddy(2020)
6.169

In a rural French town, twenty-something Teddy is scratched by an unknown beast and slowly undergoes frightening changes.



The Beast
The Beast(2020)
6.144

To rescue his daughter, an unstable Special Forces veteran unleashes his inner beast as he pursues her kidnappers — and soon becomes a suspect himself.



Werewolf: The Beast Among Us

Set in a 19th century village, a young man studying under a local doctor joins a team of hunters on the trail of a wolf-like creature.



Creature
Creature(2011)
5.19

An ex-Navy seal, his girlfriend and their friends head out on a road trip to New Orleans. The group decides to stop at a roadside convenience store owned by Chopper, who tells them the tale of Lockjaw, a fabled god-like creature who is half-man, half-alligator.



Swamp Thing
5.4

Mutated by his own secret formula, Dr. Alec Holland becomes Swamp Thing; a half-human, half-plant superhero who will stop at nothing to rescue government agent Alice Cable and defeat his evil arch nemesis...Even if it costs him his life.



From Within
5.6

When the citizens of a small evangelical town systematically begin committing suicide, a young girl struggling to reconcile her Christian upbringing with her desire to experience the outside world finds her faith put to the ultimate test.



The Evil Within
5.7

The sadistic tale of a lonely, mentally handicapped boy who befriends his reflection in an antique mirror. This demonic creature orders him to go on a murderous rampage to kill the people he loves most.



The Kindred
6

Amanda's deathbed request to her son, John, was for him to destroy all the lab notes etc. from her last experiment. She also blurts out he had a brother. At the funeral John meets Melissa, who claims to be his mother's biggest fan. Together with some of John's friends they go to Amanda's house, but none are prepared for what they find there.



The Blood Beast Terror

A scientist working with genetics creates a horrifying flying creature that feeds on human blood. Following a gruesome trail of dead bodies, Scotland Yard investigators must scramble to halt its ravenous rampage.



Medusa
Medusa(2020)
6.151

After being bitten by a lethal snake, a young woman experiences changes in her senses and appearance, as she sheds her old self and slowly turns into a deadly weapon.



Mind Ripper
4.3

A top secret experiment intended to produce a superhuman has gone terribly wrong. Now the creators, trapped in a remote desert outpost, are being pursued ruthlessly by their creation.



The Werewolf
5.5

The arrival in a small mountain town of a dissheveled stranger launches a series of murders committed by some sort of animal. As the town doctor and his daughter attempt to help the stranger, the sheriff investigates the murders; and they uncover a sinister experiment involving two rogue scientists, a car accident victim, his wife and children, and a serum that causes a man to turn into a ravaging werewolf.



Wolf Man
Wolf Man(2025)
6.3

With his marriage fraying, Blake persuades his wife Charlotte to take a break from the city and visit his remote childhood home in rural Oregon. As they arrive at the farmhouse in the dead of night, they're attacked by an unseen animal and barricade themselves inside the home as the creature prowls the perimeter. But as the night stretches on, Blake begins to behave strangely, transforming into something unrecognizable.



Raw
Raw(2016)
7

In Justine's family everyone is a vet and a vegetarian. At 16, she's a gifted teen ready to take on her first year in vet school, where her older sister also studies. There, she gets no time to settle: hazing starts right away. Justine is forced to eat raw meat for the first time in her life. Unexpected consequences emerge as her true self begins to form.



Venom
Venom(2005)
5.426

A group of teenagers fear for their lives in the swamps of Louisiana, chased by Mr. Jangles, a man possessed by 13 evil souls, and now relentless in his pursuit of new victims.



Giant Spider
6.8

In a mysterious laboratory located in the desert, the experimental spiders used for genetic research mutate and turn into giant spider monsters, turning the laboratory into a giant spider's lair. A few days later, a special warfare team led by the captain Gao Qiang, escorting Dr. Chen, a scientist of the Kwon Plant Group, goes to the laboratory to rescue the trapped people and try to retrieve the relevant scientific research data



Bleeders
Bleeders(1997)
4.458

A man with an unknown disease travels to an island with his girlfriend where his relatives once lived, hoping to find a cure to his illness. Although his relatives were all thought to be dead, he finds them living underground.



Resident Evil
6.647

When a virus leaks from a top-secret facility, turning all resident researchers into ravenous zombies and their lab animals into mutated hounds from hell, the government sends in an elite military task force to contain the outbreak.



Species
Species(1995)
6

In 1993, the Search for Extra Terrestrial Intelligence Project receives a transmission detailing an alien DNA structure, along with instructions on how to splice it with human DNA. The result is Sil, a sensual but deadly creature who can change from a beautiful woman to an armour-plated killing machine in the blink of an eye.



Cat People
6

After years of separation, Irena Gallier and her minister brother, Paul, reunite in New Orleans. When zoologists capture a wild panther, Irena is drawn to the cat – and zoo curator Oliver to her. Soon, Paul will have to reveal the family secret: that when sexually aroused, they revert into predatory jungle cats.



Devil in the Flesh
5.516

When her mother is killed in a mysterious house fire, rebellious teen Debbie Strand is sent to live with her grandmother, where she becomes even more unhinged. She develops an intense crush on her hunky creative writing teacher, Peter Rinaldi, but her numerous attempts at seduction end in failure. Soon Peter's friends start turning up dead, and he fears that his fiancée, Marilyn, may be Debbie's next victim.



Blood Glacier
5.734

At a climate research station in the Alps, the scientists are stunned as the nearby melting glacier is leaking a red liquid. It quickly turns to be very special juice — with unexpected genetic effects on the local wildlife.



Ravenous
Ravenous(2017)
6

In an isolated rural community of Quebec, Canada, some inhabitants attack other people, hungry for human flesh. A few survivors gather and go deep into the forest to escape them.



Beastly
Beastly(2011)
6.3

A modern-day take on the "Beauty and the Beast" tale where a New York teen is transformed into a hideous monster in order to find true love.



Beneath the Darkness
4.724

After watching their best friend get murdered, a group of teens struggle to expose a local hero as the vicious killer and keep from becoming his next victims.



Altered
Altered(2006)
5.426

Fifteen years ago, five men were abducted by aliens. Only four returned. Now, these same four men have managed to capture one of the creatures who killed their friend and ruined their lives.



Nature of the Beast
5.891

Two men, both hiding a deadly secret, are on a murderous rampage through the desert.



Mimic 2
Mimic 2(2001)
5.297

Detective Klaski investigates the death and mutilation of three men and soon crosses paths with Remy, an entomologist. Soon, he discovers that she is being stalked by a giant shape-shifting insect who is bent on taking over New York.



Arachnophobia
6.4

A large spider from the jungles of South America is accidentally transported in a crate with a dead body to America where it mates with a local spider. Soon after, the residents of a small California town disappear as the result of spider bites from the deadly spider offspring. It's up to a couple of doctors with the help of an insect exterminator to annihilate these eight legged freaks.



The Beast
The Beast(2019)
6.678

Two rival detectives with different methods try to solve the murder of a missing girl after discovering her mutilated body in the tidelands of Incheon.



Instinct
Instinct(1999)
6.493

In a prison for the criminally insane, deranged anthropologist Ethan Powell is set to be examined by a bright young psychiatrist, Theo Caulder. Driven by ambition and a hunger for the truth, Caulder will eventually risk everything—even put his very life on the line—in a harrowing attempt to understand the bizarre actions of this madman.



Mutants
Mutants(2009)
5.3

A nasty virus has spread throughout the human race turning the population into something ...else. After a brief setup (and a messy hit and run) we’re introduced to an ambulance and its four occupants. Sonia and Marco are together and riding with two police officers. Tensions rise between them as they head for a mythical research facility called NOAH that is reportedly infection free and working on a cure, and circumstances lead to Sonia and Marco holing up alone in an abandoned building. She’s pregnant, in love, and apparently immune to the virus… and she realizes that he’s been infected. He slowly transforms but her love for him refuses to give up on a cure, so she sets out to survive the onslaught of infected, attacks from still-human marauders, and the growing threat from her baby’s daddy.



The Void
The Void(2016)
6.007

In the middle of a routine patrol, officer Daniel Carter happens upon a blood-soaked figure limping down a deserted stretch of road. He rushes the young man to a nearby rural hospital staffed by a skeleton crew, only to discover that patients and personnel are transforming into something inhuman. As the horror intensifies, Carter leads the other survivors on a hellish voyage into the subterranean depths of the hospital in a desperate bid to end the nightmare before it's too late.



Monstrous
Monstrous(2022)
5.83

Laura, traumatized by an abusive relationship, runs away from her former husband with her seven-year-old son Cody. But in their new, idyllic and remote sanctuary, they find they have another, bigger and more terrifying monster to deal with…



I Was a Teenage Werewolf

A hypnotherapist uses a temperamental teenager as a guinea pig for a serum which transforms him into a vicious werewolf.



Replace
Replace(2017)
4.912

Kira's skin starts to age rapidly, dry out and crumble away. But then she discovers that she can replace her own skin with somebody else's.



Crawl
Crawl(2019)
6.321

When a huge hurricane hits her hometown in Florida, Haley ignores evacuation orders to look for her father. After finding him badly wounded, both are trapped by the flood. With virtually no time to escape the storm, they discover that rising water levels are the least of their problems.



Hulk
Hulk(2003)
5.575

Bruce Banner, a genetics researcher with a tragic past, suffers massive radiation exposure in his laboratory that causes him to transform into a raging green monster when he gets angry.



Swallow
Swallow(2020)
6.6

Hunter, a newly pregnant housewife, finds herself increasingly compelled to consume dangerous objects. As her husband and his family tighten their control over her life, she must confront the dark secret behind her new obsession.



When Animals Dream
5.579

Teenage Marie lives on a small island with her father and catatonic mother. Virtually friendless and sullen, Marie begins to experience frightening changes in her body that mark her as a dangerous threat.



Feast II: Sloppy Seconds

The monsters have made it into a small neighboring town in the middle of nowhere and the locals have to band with the survivors of the bar slaughter to figure out how to make it.



The Beast
The Beast(1975)
5.433

The head of a failing French family thinks that fate has smiled down on him when the daughter of a wealthy man agrees to be married to his son. The daughter and her aunt then travel out to the French countryside to meet with the family, unaware that a mysterious 'beast' is stalking the vicinity.



Assimilate
6.3

Three friends making a web series about their town discover that their neighbors are being killed and replaced by creatures who are perfect copies of their victims.



Them!
Them!(1954)
6.8

As a result of nuclear testing, gigantic, ferocious mutant ants appear in the American desert southwest, and a father-daughter team of entomologists join forces with the state police officer who first discovers their existence, an FBI agent and, eventually, the US Army to eradicate the menace, before it spreads across the continent — and the world.



Alligator
Alligator(1980)
6.1

A baby alligator is flushed down a toilet and survives by eating discarded lab animals that have been injected with growth hormones. The now gigantic animal escapes the city sewers and goes on a rampage, pursued by a cop and a big-game hunter.



In My Skin
6

A woman grows increasingly fascinated with her body after suffering a disfiguring accident.



Species: The Awakening

A scientist, Dr Hollander, takes his niece Miranda to Mexico in an attempt to reverse the effects of the alien DNA he used to create her. However the treatment goes horribly wrong, and sets Miranda on a killing spree as she sets out to find a mate.



Bats
Bats(1999)
4.6

Genetically mutated bats escape and it's up to a bat expert and the local sheriff to stop them.



Supernova
Supernova(2000)
4.946

Set in the 22nd century, when a battered salvage ship sends out a distress signal, the seasoned crew of the rescue hospital ship Nova-17 responds. What they find is a black hole--that threatens to destroy both ships--and a mysterious survivor whose body quickly mutates into a monstrous and deadly form.



The Hidden
6.882

When average, law-abiding citizens suddenly turn to a life of hedonistic behavior and violent crime, Detective Tom Beck is tasked with helping young FBI agent Lloyd Gallagher determine the cause.



Spiders
Spiders(2000)
4.899

A DNA experiment on a rare breed of spider is taking place on a NASA space shuttle, when a freak meteor shower engulfs the shuttle, causing everything to go horribly wrong. One survivor is found on the ship and watched over in a secret location deep in the California desert. The problem continues, as the survivor isn't alone, as another deadly spiders climbs out of him and goes on a rampage around the ship. Curious reporter Marci Eyre must now survive, escape and warn everyone before the spider reaches outside the desert.



Titane
Titane(2021)
6.3

A woman with a metal plate in her head from a childhood car accident embarks on a bizarre journey, bringing her into contact with a firefighter who's reunited with his missing son after 10 years.



It Feeds
It Feeds(2025)
6.852

A clairvoyant therapist confronts her own personal demons while trying to save a young girl who believes a malevolent entity is feeding on her.



Venom: Let There Be Carnage

After finding a host body in investigative reporter Eddie Brock, the alien symbiote must face a new enemy, Carnage, the alter ego of serial killer Cletus Kasady.



Creature
Creature(1985)
4.6

A crew of scientists arrives on a far, cold planet to examine archaic artifacts of unknown origin. They discover that their German enemies already have a ship there. When they seek their help after a failed landing, they only find the Germans’ bodies, obviously slaughtered by one of the archaic creatures, awoken to new life. Now the alien is after them.



The Young Cannibals
6.148

Seven friends summon a monster when they are tricked into eating burgers made of human flesh.



Alice in Terrorland
5.887

A recently bereaved teenage girl goes to live with her aunt in a secluded woodland house, unaware that sinister forces lurk within.



Hellraiser: Revelations

Two friends in Mexico discover the Lament Configuration and unleash Pinhead, but one decides to try to survive by swapping himself with someone else. Once they go missing, family members go in search of them, but find Pinhead instead.



Prey
Prey(2019)
4.696

After being put on a supposedly uninhabited island as a form of behavioral rehabilitation, a high school senior finds that he's not alone on the island, and that getting discovered could be deadly.



Tentacles
Tentacles(1977)
4.6

Several people disappear from and at the sea. Their bodies are found gnawed to the skeleton, even the marrow is missing. The scientists have no idea which animal could do such things. Dr. Turner begins to suspect that the company which builds a tunnel beneath the bay might have poisoned the environment and caused an octopus to mutate to giant dimensions...



The Incredible Hulk
6.42

An accidental overdose of gamma radiation causes a mutation in scientist David Banner's DNA: now whenever he becomes angry, he metamorphoses into a seven-foot-tall, 330-pound, mindless muscular green creature.



The New Mutants
6.086

Five young mutants, just discovering their abilities while held in a secret facility against their will, fight to escape their past sins and save themselves.



The Animal Kingdom
6.989

In a world hit by a wave of mutations transforming humans into animals, François does everything he can to save his wife. As some of the creatures disappear into a nearby forest, he and their son Émile embark on a quest that will change their lives forever.



Feast
Feast(2005)
6.2

Patrons locked inside a bar are forced to fight monsters.



Zombie Flesh Eaters 2
5.091

When a terrorist's body, infected with a stolen chemical, is recovered by the US military, the corpse is cremated, unintentionally releasing a virus and bacteria into the atmosphere over a small island.



Sea Beast
Sea Beast(2008)
4.434

In the fishing village of Cedar Bay, terror lies within the water. And now it has surfaced in search of something more substantial to devour than marine life: human flesh. A captain and a sea biologist must wage a terrifying battle against the deadly creatures in order to save mankind from total extinction.



The Monster
5.536

A mother and her 10-year old daughter are trapped in a forest. There is something in this forest. Something unlike anything they have heard before. Something that lurks in the darkness and it’s coming after them.



Descent
Descent(2007)
4.2

Following a brutal assault, a college co-ed's life spirals until she encounters her assailant while working as a dancer. The predator has become the prey, and the prey has set her sights on revenge.



The Nest
The Nest(1988)
5.197

Horrifying shocker as a biological experiment goes haywire when meat-eating mutant roaches invade an island community, terrorizing a peaceful New England fishing village and hideously butchering its citizens.



There's Someone Inside Your House

As the countdown to graduation begins, students at Osborne High are being stalked by a maniac intent on exposing their darkest secrets to the entire town, terrorizing victims while wearing a life-like mask of their own face. With a mysterious past of her own, Makani and her friends must discover the killer's identity before they become victims themselves.



The Island of Dr. Moreau

A ship-wrecked man floats ashore on an island in the Pacific Ocean. The island is inhabited by a scientist, Dr. Moreau, who in an experiment has turned beasts into human beings.



Forbidden World
5.224

In the distant future, a federation marshal arrives at a research lab on a remote planet where a genetic experiment has gotten loose and begins feeding on the dwindling scientific group.



The Shed
The Shed(2019)
5.895

The story of Stan, an orphaned teenager stuck living with his abusive grandfather and tasked with routinely protecting his best friend from high school bullies. When Stan discovers a murderous creature has taken refuge inside the tool shed in his backyard, he tries to secretly battle the demon alone until his bullied friend discovers the creature and has a far more sinister plan in mind.



Monster Island
5.3

Young Lucas finds out he's not really a human after he surprisingly transforms into a monster in front of the most popular kids at school. His search for Monster Island and his real roots takes him on a fabulously scary journey that puts him face to face with more tentacles, fangs and far-out situations than he can shake one of his new wings at.



Suitable Flesh
5.287

A once-esteemed psychiatrist helplessly watches her life spiral into a nightmarish maelstrom of supernatural hysteria and gruesome deaths, all linked to a seemingly unstoppable ancient curse.



State of Emergency
5.389

Chaos consumes a small town when a chemical facility explodes releasing a deadly toxin. Moments after the leak, the town's residents show signs of mutation, causing the military to quarantine the area leaving any survivors helpless and trapped inside. The story follows Jim, a young man isolated within the red zone, as he eludes flesh eating zombies in an attempt to win back his freedom.



Leviathan
Leviathan(1989)
6

Underwater deep-sea miners encounter a Soviet wreck and bring back a dangerous cargo to their base on the ocean floor with horrifying results. The crew of the mining base must fight to survive against a genetic mutation that hunts them down one by one.



Eaten Alive
5.441

A psychotic redneck owns a dilapidated hotel in rural East Texas, where he murders those who upset him or his business, and then feeds their remains to his pet crocodile in the swamp beside his hotel.



Feral
Feral(2018)
6.167

A wild animal attacks six medical students on a weekend hike in the woods. One by one, they become infected with a “feral disease,” turning them into rabid, bloodthirsty creatures, and the vacation becomes a nightmare as they fight to survive each other.



The Breed
The Breed(2001)
5.1

Vampires have come out of the shadows and are living as normal citizens. Two policemen, one a vampire, are assigned to track down a serial killer who tears the throat of his victims and drains their blood.



The Monster
6.954

A vicious serial sex killer is on the loose, and landscape gardener and shop-window outfitter Loris is the prime suspect, thanks to his unfortunate habit of getting caught in compromising situations (for which there is always a totally innocent explanation that the police fail to spot). Undercover policewoman Jessica is assigned by eccentric police psychologist Taccone to follow Loris.



Arachnid
Arachnid(2001)
4.247

Mercer's brother, an amateur pilot, crashes on an island and is killed by a giant spider. A year later, when Mercer goes in search of him, she discovers a breed of poisonous arachnids ready to attack.



Beast
Beast(2022)
6.5

A recently widowed man and his two teenage daughters travel to a game reserve in South Africa. However, their journey of healing soon turns into a fight for survival when a bloodthirsty lion starts to stalk them.



The Nightmare
6.37

After a massive party one evening, 17-year-old Tina begins experiencing nightmares in which she is haunted by an unusual creature.



Splice
Splice(2010)
5.9

Elsa and Clive, two young rebellious scientists, defy legal and ethical boundaries and forge ahead with a dangerous experiment: splicing together human and animal DNA to create a new organism. Named "Dren", the creature rapidly develops from a deformed female infant into a beautiful but dangerous winged human-chimera, who forges a bond with both of her creators - only to have that bond turn deadly.



The Nude Vampire
4.7

A young man falls in love with a beautiful woman being chased by sinister masked figures at night. He tries to track her down, and learns she's being held captive by his father and colleagues who believe she's a vampire.



Closet Monster
7.1

A creative and driven teenager is desperate to escape his hometown and the haunting memories of his turbulent childhood.



Wolves
Wolves(2014)
5.9

The coming-of-age story of Cayden Richards. Forced to hit the road after the murder of his parents, Cayden wanders lost without purpose... Until he meets a certifiable lunatic named Wild Joe who sets him on a path to the ominous town of Lupine Ridge to hunt down the truths of his history. But in the end| who's really hunting whom?



The Tower
The Tower(2023)
4.79

In the heart of a city, the inhabitants of a tower wake up one morning to find that their building is shrouded in an opaque fog, obstructing doors and windows - a strange dark matter that devours anything that tries to pass through it. Trapped, the residents try to organize themselves, but to ensure their survival they gradually succumb to their most primitive instincts, until they sink into horror...



In Their Skin
5.303

A couple and their young son retreat to their woodland vacation home, only to face sinister neighbors who intend to kill them and steal their identities.



Evolution
Evolution(2016)
6

11-year-old Nicolas lives with his mother in a seaside housing estate. The only place that ever sees any activity is the hospital. It is there that all the boys from the village are forced to undergo strange medical trials that attempt to disrupt the phases of evolution.

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