After a childhood friend's suicide, Hideaki and his former classmates reunite to pay their respects. Soon after, a DVD, marked X arrives revealing a man being tortured, triggering a flashback in Hideaki, reminding him of witnessing a schoolmate being subjected to humiliating batsu (punishment) games. One evening, Hideaki is kidnapped and when he awakens the next day, he discovers he is in a recreation of his old school-room, along with his fellow classmates. Trapped and held captive by mysterious hooded figures, each of them must now play a brutally violent, version of the punishment game, in order to survive.
相島一之
as Detective Murota
荒木宏文
as Hideaki Kokubo
Shôta Chiyo
as Tsuyoshi Shinjou
Meguru Katô
as Tetsuya Yoshiike
菊地あやか
as Rikako Myojin
Masashi Mikami
as Tadashi Ishimatsu
鶴見辰吾
as Professor Akama
仲川遥香
as Tomoe Koizhumi
Ishino Atsushi
as Morino
