En un colegio lleno de jovenes, comienzan a sucederse extraños asesinatos entre los alumnos.
이범수
Hwang Chang-wook
윤정희
Choi So-yeong
남규리
Kang Yi-na
김범
Kang Hyeon
손여은
Yoon Myung-hyo
이얼
Security guard
Kim So-hee
Ji-won's mother
공정환
Lee Chi-yeong
함은정
Kim Ji-won
Yang Ji-won
Min Hye-yeong
Lee Chae-won
Yeom Ji-hyang
