The best Jeon Kuk-hwan’s thriller movies

Kyung-chul is a dangerous psychopath who kills for pleasure. He has committed infernal serial murders in diabolic ways that one cannot even imagine and his victims range from young women to even children. The police have chased him for a long time, but were unable to catch him. One day, Joo-yeon, daughter of a retired police chief becomes his prey and is found dead in a horrific state. Her fiance Soo-hyun, a top secret agent, decides to track down the murderer himself. He promises himself that he will do everything in his power to take bloody vengeance against the killer, even if it means that he must become a monster himself to get this monstrous and inhumane killer.

Jae-hyuk is a pharmaceutical worker for a medical supplies company. When a series of dead bodies are found floating in the Han River. The public is shocked to discovered that the deaths are related to a fatal outbreak of virus-infected mutant parasitic horsehair worms, called 'Yeongasi', that can control the human brain. Those infected shows symptoms of hunger and thirst, hence jumps into the river to combat dehydration. Whilst the authorities work to find a cure, Jae-hyuk struggles to save his family when they also exhibits similar symptoms.

The film is based on a true yet unsolved murder case from the early 1990s that is known among Koreans as the "disappearance of the frog children." In 1991, five elementary school students told their parents that they were going to hang out on a nearby mountain to catch frogs, and then they go missing.

A biker is forced to deliver a ticking time bomb by a mysterious caller who has put an explosive helmet on his ex-girlfriend.

A young woman tries to escape what seems to be a curse that is killing members of her family one by one.

Impaired by amnesia, Jeong-won (Shin-yang Park) can't remember his youth -- until he meets Yeon (Ji-hyun Jun), a psychic who may be able to uncover his past. After witnessing the horrific deaths of children, both share dreamlike visions of ghostly forms. Together, they explore the depths of psychological terror in this chilling Korean thriller, artfully directed by Su-yeon Lee.

Hyun-soo is a skillful individual stock investor, so-called ‘ant’. One day, he cashes in up seventy thousand dollars through stock trading and this jackpot gets him implicated in a $60 million stock manipulation by scam artists from various fields. With a huge pot of money before their eyes, the scam seems to be perfectly unfolding. But another scam is emerging underneath team as the scammers chase each other and are being chased at the end.

Back in his high school days, Joon-Seok was bullied by Chang-Sik Because of this, Joon-Seok's high school days were like a nightmare. Now, Joon-Seok finds it difficult to live a normal life due to the bullying. Meanwhile, Chang-Sik, who has forgotten what he did to Jeon-Seok, lives a relatively happy life. He is about to marry Ji-Hee. Joon-Seok will pay him back for all the misery.