During fourth period, high schooler Da-jeong finds her classmate Tae-gyu dead in a classroom and Jeong-hun standing in front of him with blood on his clothes. In order to stop Jeong-hun from becoming the prime suspect, Da-jeong must help him find the real murderer, who is still inside the school building, under 40 minutes before period four ends.
Lee Sang-yong
Director
Shin Jai-ho
Writer
Yoo Seung-ho
Han Jung-hoon
Kang So-ra
Lee Da-jeong
Sang-geun Jo
Kim Tae-gyoo
Jeong Seok-yong
Kang Gook-man
Jeon Jun-hong
Embassy
Rie Young-zin
Yun Sang-mi
Kim Dong-beom
Do-il
Jo Yun-hei
Hong Ju-hee
Lee Chan-ho
The Seven-Ups63%
Overdrive61%
Limbo59%
그림자 살인62%
The Parts You Lose66%
F.I.S.T.65%
감시자들75%
The Pelican Brief65%
Surviving the Game61%
기술자들68%
16 Blocks64%
The Organization63%
자백72%
Thick as Thieves59%
Islands61%
Transporter 361%
The 35560%
아이들...73%
바르게 살자73%
공공의 적 1-1: 강철중66%
