

People binge eat and suffer from extreme thirst, which leads them to go crazy for water. They cannot control themselves because they are brainwashed by a parasite.
Acting
Kim Myung-min's unraveling desperation carries the entire third act.
Direction
Park Jung-woo stages mass chaos with claustrophobic intimacy.
Practical Effects
Grotesque body horror achieved without over-reliance on CGI.

Director
Park Jung-woo
Trivia, insights & behind the scenes
Released two years after the actual 2010 mass fish die-off in the Han River, which made its ecological horror uncomfortably timely for Korean audiences.
The 'horsehair worm' parasite depicted is real—just thankfully not THIS effective at mind control. The film's creature design consulted actual parasitologists.