

In a prep-class for year-end exams, a sadistic killer puts the students through mind-games in order to save each other.
Practical Effects
Gruesome death contraptions built from classroom objects.
Acting
Kim Bum's pretty-boy terror before Boys Over Flowers fame.

Director
Chang
Trivia, insights & behind the scenes
Released during South Korea's 'exam hell' crisis; suneung pressure literally drove students to suicide. The horror landed different.
Director Chang (Yoon Hong-seung) was a music video director — notice the slick visual style that outclasses the script.