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.

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Main Cast: Lee Beom-soo, Yoon Jung-hee, Nam Gyu-ri, Ian Kim Beom, Son Yeo-eun, Lee Eol, Kim So-hee, Kong Jeong-hwan, Hahm Eun-jung, Yang Ji-won

Director: Chang

Writers: Kim Eun-Kyeong, Chang

Editor: Yu Yeong-ju

Cinematographer: Heo Seong-ryong

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