The story
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.
Cast & crew
Yoo Seung-hoHan Jung-hoon
Kang So-raLee Da-jeongJo Sang-geun
Jo Sang-geunKim Tae-gyooJeon Jun-hong
Jeon Jun-hongByeong-soo
Jeong Seok-yongKang Gook-man
Park Cheol-minCrazy
Rie Young-zinYun Sang-mi
Jo Yoon-heeHong Ju-heeLee Chan-ho
Lee Chan-hoTak Teuin
Min Kyung-jinHeadmaster
Im Soo-hyangFanExplore the crew
- Director
- Lee Sang-yong
- Writer
- Shin Jai-ho
- Editor
- Kyung Min-ho
- Producer
- Seo Myeong-jin
- Director of Photography
- Mun Ho-jin