I Saw the DevilMovies like I Saw the Devil
- Key Features:
- Revenge, Serial killer, Psychological thriller, Cat and mouse game, Vigilante justice, Moral ambiguity, Violence-high, Loss of innocence, Descent into darkness, Extreme violence, Graphic violence, Secret agent, Psychopath
- Tone:
- serious, gritty, suspense-driven
- Target Audience:
- Thriller fans, Horror enthusiasts, Fans of Korean cinema, Viewers interested in dark and violent themes
- Emotional Arc:
- Grief → Vengeance → Despair
I Saw the Devil

Kyung-chul is a dangerous psychopath who kills for pleasure. Soo-hyeon, a top-secret agent, decides to track down the murderer himself. He promises himself that he will do everything in his power to take vengeance against the killer, even if it means that he must become a monster himself.
I Saw the Devil
After barely surviving a brutal attack by a sadistic serial killer, crime boss Jang Dong-su is left humiliated. Determined to catch the killer known as K, he forms an uneasy alliance with Jung Tae-seok, a relentless and incorruptible detective who often disrupts his illegal business. However, while Jang Dong-su wants K dead, Jung Tae-suk is determined to bring him to justice. With a deal in place—whoever finds K first will decide his fate—the hunt begins, blurring the lines between crime and law.

Bok-Soon runs a street stall, cares for her younger sister, and is feared by many because of her quick temper. When Tae-Soo murders her sister, rage consumes her completely as she stalks the killer.

Forensic pathologist Kang is assigned to examine the dismembered corpse of a female murder victim. Detective Min points to a fanatic environmentalist, Lee Sung-ho, as the primary suspect. But when Kang’s daughter is kidnapped, a manipulative game begins between Kang and Lee, who holds secrets about the homicide case.

The veteran detective Seo Do-cheol and his team at Major Crimes, relentless in their pursuit of criminals, join forces with rookie cop Park Sun-woo to track down a serial killer who has plunged the nation into turmoil.

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.

While his girlfriend is away on a trip, retired assassin Bang Ui-kang is tasked with looking after her friend's 17-year-old daughter. After a street attack, Bang Ui-kang becomes embroiled in a murder investigation and dangerous trafficking gang.

Mantis, an ace assassin, returns to the contract killer industry after a hiatus, encountering his trainee friend Jae-yi and a retired legendary killer Dok-go, who now runs the organization.

Hell-bent on avenging the murder of his family, a former detective infiltrates a remote island that serves as a prison for vicious death row criminals.

With no clue how he came to be imprisoned, drugged and tortured for 15 years, a desperate man seeks revenge on his captors.

A deaf man and his girlfriend resort to desperate measures in order to fund a kidney transplant for his sister. Things go horribly wrong, and the situation spirals rapidly into a cycle of violence and revenge.

Gang-pae is #2 gangster in his organization who longs to become an actor. Su-ta is a superstar actor who takes on the role of a gangster in an action movie called Rough Cut. When another actor leaves the set due to Su-tas violent ways, the production is on the verge of shutting down. Su-ta asks Gang-pae, whom he met by chance, to play alongside him in the movie in order to save the production.

A serial killer is caught for his seventh murder. A cop tries to solve the first six cases with the killer's help, but starts to suspect that he has ulterior motives. Based on a true story.

Ha Yoon-ju becomes the newest member of a unit within the Korean Police Forces Special Crime Department that specializes in surveillance activities on high-profile criminals. She teams up with Hwang Sang-jun, the veteran leader of the unit, and tries to track down James who is the cold-hearted leader of an armed criminal organization.

A girl who lost her father to a serial killer, a detective and a killer are intertwined in a chaotic relationship and are met with an unprecedented series of events.

Cho-in has special powers that allow him to control everyone he can see, that is until he meets Kyu-nam, the only person he can't control. A series of events begins a confrontation that pushes both men to the brink.

After his beloved fiancée is killed by demons, Yi Gwak joins the royal demon-hunting squad and distinguishes himself as a great hero. And though Yi eventually falls in battle, his adventures are just beginning. His spirit is whisked away to Joong-cheon, a place between heaven and earth where souls await reincarnation -- and where the final, epic clash between the forces of good and evil will be played out.

Betrayed and on the run, a former North Korean agent tries to seek revenge on the man who killed his wife, find his missing daughter, and uncover the secrets hidden inside the eyeglasses of a dead man.

Honed from childhood into a merciless killing machine by a criminal organization, assassin Sook-hee is recruited with the promise of freedom after ten years of service. However, secrets from her past destroy everything she’s worked for and now she embarks on a roaring rampage of revenge.

A woman's child is kidnapped and killed after paying the ransom. 15 years later, a mysterious figure is seen visiting the site of killing and another kidnapping occurs using the same methods. The woman teams up with a detective to catch the killer once and for all.

Jae-ho, who aims to become the number one in a crime organization, gets to build up trust with Hyun-su, an ambitious newbie in the prison. While they try to take over the organization after the prison release, their ulterior motives starts to emerge.

Ex intelligence agent Ki-heon is tasked with safely transporting Seo Bok, the first ever human clone, who holds the secret of eternal life. Several forces try to take control of Seo Bok to serve their own agendas.

Joong-ho is a dirty detective turned pimp, who's in financial trouble as several of his girls have recently disappeared without clearing their debts. While trying to track them down, he finds a clue that the vanished girls were all called up by the same client, whom one of his girls is meeting with right now.

Hong Gil-dong is an infallible private detective with an exceptional memory and quirky personality. While chasing the only target he failed to find, he gets entangled in a much bigger conspiracy than he bargained for.

An assassin named Tae-goo is offered a chance to switch sides with his rival Bukseong gang, headed by Chairman Doh. Tae-goo rejects the offer that results in the murder of his sister and niece. In revenge, Tae-goo brutally kills Chairman Doh and his men and flees to Jeju Island where he meets Jae-yeon, a terminally ill woman. Though, the henchman of the Bukseong gang, Executive Ma is mercilessly hunting Tae-goo to take revenge.

Detective Cho, a cop on the edge, is mourning his mother's recent death while under investigation for graft; on top of that he is suddenly put in charge of a seemingly-impenetrable mystery.

An honest cop has to compromise with his principles when he is told to find a scapegoat for a high-profile serial killer case in exchange for a big promotion.

Jun-oh, an insurance claims agent, faces off with a client who he suspects of committing murders with the intention of collecting insurance premiums.

Three years after his sister's death, Yak relentlessly searches for the dark spirit that killed her in hopes of seeking revenge.

A son to a high-ranked official in North Korea commits a series of murders going across the countries around the world. The movie depicts the following events as South Korea, North Korea and Interpol start chasing down after him.

'Monster Cop' Ma Seok-do investigates an illegal online gambling business led by a former STS Baek and an IT genius CEO Chang. Ma proposes an unexpected alliance to Jang and begins hunting down the criminals.

A beautiful teacher is wronged by six of her students. Calling on demons and forces of black magic, she extracts an ultra-gruesome retribution against each of them.

As a deadly battle rages over Jigsaw's brutal legacy, a group of Jigsaw survivors gathers to seek the support of self-help guru and fellow survivor Bobby Dagen, a man whose own dark secrets unleash a new wave of terror.

A serial killer murders a girl from his neighborhood. The residents begin to suspect him one by one, as he tries to cover his tracks and plans another kill before escape.

26 years ago, state troops were ordered to open fire on civilians in the city of Gwangju who were demonstrating as apart of a democratic movement. Thousands of civilians were killed. Now, a shooter from the national team, a gang member, a policeman, CEO from a large company and director of a private security outfit get involved in a plan to convict the person responsible for the massacre.

A web-comic artist finds that a series of murders are occurring that have a disturbing resemblance to the images in her work.

Following Jigsaw's grisly demise, Detective Mark Hoffman is commended as a hero, but Agent Strahm is suspicious, and delves into Hoffman's past. Meanwhile, another group of people are put through a series of gruesome tests.

Mi-ja, who has been taking care of a retired teacher, Ms. Park, invites several of her former students to her house 16 years after their graduation. Since the end of her teaching career, Park has been residing in the countryside, suffering from an illness while an ex-student, the kind and pretty Mi-ja cares for her.

A hitman accidentally kills a little girl. Filled with regret, he wants to quit. But then to tie up loose ends, he is forced to go on another job, to kill the girl's mother.

A pimp enforcer takes revenge on a woman who rejected his advances by tricking her into prostitution, but complications arise.

TV Producer Kang Min enters Spider Forest for a documentary. He enters a cabin and discovers two brutally murdered bodies. One is his girlfriend Hwang Soo-Young and the other is his colleague Choi Jong-Pil. Kang Min also senses someone watching him and runs after that person into to the forest. He's soon knocked unconscious. When he awakens again he continues his chase into a tunnel. Kang Min is then struck by a speeding car.

Deliveryman Jong-su is out on a job when he runs into Hae-mi, a girl who once lived in his neighborhood. She asks if he'd mind looking after her cat while she's away on a trip to Africa. On her return, she introduces to Jong-su an enigmatic young man named Ben, who she met during her trip. One day Ben tells Jong-su about his most unusual hobby.

A detective accidentally kills a man and disposes of the body to protect his career. The next day he sees that someone has hanged the corpse from a crane for all to see. He takes charge of the murder investigation to protect himself and find out who did it.

Released after being wrongfully convicted and imprisoned for 13 years, a woman begins executing her elaborate plan of retribution.

A young assassin is sent to kill a retired mob boss. But things get complicated when she begins to like him.

A serial killer ruthlessly hunts down a deaf woman through the streets of South Korea after she witnesses his brutal crime.

The 'Beast Cop' Ma Seok-do heads to a foreign country to extradite a suspect, but soon after his arrival, he discovers additional murder cases and hears about a vicious killer who has been committing crimes against tourists for several years.

Young Polish nobleman Jakub is saved from imprisonment by a stranger. In return, the stranger wants to obtain a list of Jakub’s fellow conspirators. As he follows his mysterious savior across the country, Jakub is affected by the overall chaos and moral corruption; he goes insane and becomes a mass murderer.

After being kidnapped as a small child and raised by the five men who abducted him, a teenage boy is now forced to join their life in crime.

A contract killer becomes disenchanted with his line of work and spares the lives of his two latest would-be-victims. But the assassination company he works for has no intentions of letting him quit.

Two spies share a secret bond, despite their loyalties. A North Korean assassin is sent to Seoul to kill a dissident, but instead he teams up with a South Korean agent in search for revenge.

At a Thai hospital, a doctor and his seven nubile nurses engage in the sale of dead bodies. Jealousy causes one of the nurses to threaten to blow the whistle on the practice, so the others murder her. Soon the spirit of the slain nurse seeks revenge. In flashbacks we see the events leading up to the murder, and realize the full range of relationships between the main characters.

A determined detective continues his search for the truth behind Asia's largest drug organization and its elusive boss he has unfinished business with.

A retired contract killer goes on a bloody rampage when a young girl finds herself at the mercy of gangland human traffickers and only one man can come to her rescue, with an arsenal of weapons and years of experience in the art of killing.

A young pathologist seeks answers to the mysterious death of a friend and soon comes into contact with the same cursed videotape that caused the death of the friend's wife and son, which is haunted by the curse of Sadako, a relentless spirit.

A stranger arrives in a little village and soon after a mysterious sickness starts spreading. A policeman is drawn into the incident and is forced to solve the mystery in order to save his daughter.

After a high-ranking North Korean official requests asylum, KCIA Foreign Unit chief Park Pyong-ho and Domestic Unit chief Kim Jung-do are tasked with uncovering a North Korean spy, known as Donglim, who is deeply embedded within their agency. When the spy begins leaking top secret intel that could jeopardize national security, the two units are each assigned to investigate each other.

Despite Jigsaw's death, and in order to save the lives of two of his colleagues, Lieutenant Rigg is forced to take part in a new game, which promises to test him to the limit.

Tae-su, a detective fighting organized crime, returns to his hometown for his high school friend Wang-jae's funeral. There, he meets his old friends Pil-ho, Dong-hwan and Seok-hwan and they reminisce. Suspecting something fishy about Wang-jae's death, Tae-su and Seok-hwan start investigating it, each in his own way. Their investigations lead to a land development project that Pil-ho is directing.

Min Ji-Won suffers from amnesia caused by an accident almost a year ago. After the accident, Min Ji-Won is a shy person. Prior to the accident, Min Ji-Won was the leader of a gang of four girl bullies. Through pictures, Min Ji-Won learns about the three other members and she wants to learn what happened to them. While Min Ji-Won attempts to unravel the mystery, her former friends are killed one by one.

After trying to cover up a car accident that left a man dead, a crooked homicide detective is stalked by a mysterious man claiming to have witnessed the event.

Grieving the loss of a best friend she couldn't protect, an ex-bodyguard sets out to fulfill her dear friend's last wish: sweet revenge.

After a prosecution lawyer is framed and convicted for murder, he tries to catch the real murderer from jail with the help of a con artist.

An evil spirit that changes faces infiltrates one family placing one brother in danger while the other tries to save him.

Following a brutal murder case, the police are baffled to find out that the assailant, whose body was found on the scene with the victim, had already been dead for three months. Meanwhile, journalist Jin-hee sets up a live interview with an anonymous caller claiming he is the true killer behind the mysterious murder. When the man announces three more murders will occur in the hands of the undead, Jin-hee must face the sinister forces beyond understanding.

All unemployed, Ki-taek's family takes peculiar interest in the wealthy and glamorous Parks for their livelihood until they get entangled in an unexpected incident.

A notorious dirty cop makes an honest attempt to catch a serial killer who even murdered his own parents.

Veteran detective Cham works with rookie cop Will to hunt down the city's serial killer. The investigation leads them to a lair littered with dismembered female limbs, and an ex-con who killed Cham's wife and child years ago...

After waking up with mysterious wounds on his hands, a champion fighter finds himself in an otherworldly battle against evil forces that wreak havoc in the human world.

After tracing the origin of a disturbing supernatural affliction to a wealthy family's ancestral gravesite, a team of paranormal experts relocates the remains—and soon discovers what happens to those who dare to mess with the wrong grave.

To nab a sales manager who's at large after murdering his family, a detective investigates the man's colleagues, who seem to be hiding something.

Kim Sun-woo is an enforcer and manager for a hotel owned by a cold, calculative crime boss, Kang who assigns Sun-woo to a simple errand while he is away on a business trip; to shadow his young mistress, Hee-soo, for fear that she may be cheating on him with a younger man with the mandate that he must kill them both if he discovers their affair.

A serial killer reappears 15 years after his murder spree with a book detailing his crimes. The resentful cop who failed to catch him before is assigned to protect him. The families of the victims plan revenge. And as the media circus spirals out of control, a masked man called "J" appears claiming to be the real killer.

Eun-yi is hired as a maid in a mansion owned by a wealthy businessman. He quickly starts seducing his employee who seemingly has little choice but to comply with his sexual advances. Soon the women of the family plot against Eun-yi who must fight an equally devious battle to protect herself.

Jigsaw has disappeared. Along with his new apprentice Amanda, the puppet-master behind the cruel, intricate games that have terrified a community and baffled police has once again eluded capture and vanished. While city detectives scrambles to locate him, Doctor Lynn Denlon and Jeff Reinhart are unaware that they are about to become the latest pawns on his vicious chessboard.

Sung-soo has everything a man could want: a beautiful wife and children, a comfortable home and luxury car, and plenty of money in the bank. When he learns that his estranged brother, Sung-chul, has gone missing, haunting memories of their troubled past urge him to visit his brother’s apartment in search of answers.

A small-time thug who collects debts for the local triad is torn between his criminal aspirations and his devotion to family.

A wife, overwhelmed with hatred for her husband, inflicts an unspeakable wound on their son, as the family heads towards horrific destruction.

A professional GO player gathers a team to help him carry out his revenge against the man who killed his brother.

Two North Korean soldiers are killed in the border area between North and South Korea, prompting an investigation by a neutral body. The sergeant is the shooter, but the lead investigator, a Swiss-Korean woman, receives differing accounts from the two sides.

A female detective investigates the cause of a high school girl’s death and uncovers a disturbing truth.

For 15 days, a politician and his wife navigate a scandal after their daughter goes missing on the eve of the national elections.

Reporter Na-yeong and her partner investigate a series of mysterious deaths and a perplexing case where her source was allegedly already dead at the time of their interview. Together they end up confronting a terrifying truth.

A disillusioned Seoul woman visits a remote island to reconnect with a childhood friend, only to find her trapped in an oppressive cycle of physical, mental, and sexual abuse. As tensions escalate, the situation spirals into a harrowing tale of survival and retribution.

Pil-ju, an Alzheimer's patient in his 80s, who lost all his family during the Japanese colonial era, and devotes his lifelong revenge before his memories disappear, and a young man in his 20s who helps him.

The assistant of a wealthy socialite reveals her husband's salacious affair. The fallout entangles him in a web of sex, love and deceit that could threaten his life and career.

Teenage friends Kit and Libby make prank phone calls for fun but then find themselves involved in a brutal double murder committed by one of their targets.

The ghost of a student who died at a Korean school comes back to seek vengeance and protect her friends.

The ghost of a lesbian high-school girl takes revenge on the people who used to bully her. And another young girl finds her old diary detailing her love and rejection when she was alive.

On the run from a dogged internal affairs agent, a corrupt cop reluctantly teams up with a defiant teen to unravel a conspiracy before it's too late.

A jaded homicide detective has been put on the case of a ruthless killer in the city of Chicago, who leaves a trail of horribly mutilated and dismembered corpses along with perversely ironic biblical quotes.

After a traumatic event, a drug trafficker turns sides and conspires with a dangerously ambitious undercover police officer to bring down the mysterious kingpin of a major drug cartel.

When Jane and Tun run over a girl in a car accident, they speed away immediately from the crime scene. However, Tun, a photographer, soon discovers strange shadows in his photos, which unsettles them.

Hyun-su and Soo-jin are newlyweds. Seemingly out of nowhere, he starts talking in his sleep. "Someone's inside." From that night on, whenever he falls asleep, he transforms into someone else with no recollection of what happened the night before. Soo-jin is overwhelmed with anxiety that he'd hurt her family while she sleeps and can barely sleep a wink because of this irrational fear. Despite sleep treatment, Hyun-su’s sleepwalking only intensifies, and she begins to feel that her unborn child may be in danger…

When a zombie virus pushes Korea into a state of emergency, those trapped on an express train to Busan must fight for their own survival.

A struggling restaurant owner, caring for his sick mom, finds a bag of cash in a sauna locker, while a customs officer gets into trouble when his girlfriend runs off with money he borrowed from a loan shark.

Ja-yoon is a high school student who struggles with memory loss after she endured some unknown trauma during her childhood. While trying to uncover the truth, she is unwittingly dragged into a world of crime and finds herself on a journey that will awaken many secrets hidden deep within.

Woo Yeong-min retired from the police force after trying to save his partner and causing his death. After a series of mysterious deaths in the shopping mall in which his uncle has allowed him to work as a security guard prior to its reopening, he must face both his own fear of mirrors and the mystery surrounding the fire that closed down the mall.

A boy who can see ghosts moves to a small town, where he befriends a female ghost. The two work together to investigate a masked ghost who is murdering students one by one.

