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.
In the 11th year of Kwang Hae-gun, Jo-seon soldiers go to war with China after an invasion. In the middle of Manchu, three people who have barely survived are being cornered by the Chinese forces, and begin a bloody battle not with their enemies but with their friends.
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.
I Saw the Devil
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.
On a fishing boat at sea, a 60-year old man has been raising a girl since she was a child. It is agreed that they will get married on her 17th birthday. They live a quiet and secluded life, renting the boat to day fishermen and practicing strange divination rites. Their life changes when a teenage student comes aboard.