One will die for every incorrect answer.
In a prep-class for year-end exams, a sadistic killer puts the students through mind-games in order to save each other.
Hwang Chang-wook
Choi So-yeong
Kang Yi-na
Kang Hyeon
Yoon Myung-hyo
Security guard
Ji-won's mother
Lee Chi-yeong
Kim Ji-won
Min Hye-yeong
2010
2006
2003
2014
2007
1969
2011
1991
2021
2012
2008
2018
2020
2013
