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Movie
4th Period Mystery
Released: August 12, 2009 (2009)
Runtime: 86 minutes
Genres: Crime, Mystery, Thriller, Action
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.
Main Cast (Top 10 billed, oldest first)
- Jeong Seok-yong as Kang Gook-man
Age at release: 38
- Lee Yeong-jin as Yun Sang-mi
Age at release: 28
- Kang So-ra as Lee Da-jeong
Age at release: 19
Age at release: 19
- Yoo Seung-ho as Han Jung-hoon
Age at release: 15
- Sang-geun Jo as Kim Tae-gyoo
Age at release: Unknown
- Jeon Jun-hong as Embassy
Age at release: Unknown
- Kim Dong-beom as Do-il
Age at release: Unknown
- Jo Yun-hei as Hong Ju-hee
Age at release: Unknown
Age at release: Unknown
Show more cast
- Park Cheol-min as Crazy
Age at release: 42
- Kim Min-su as Virtual Criminal
Age at release: 39
Age at release: 27
- Oh Jin-ha as Student in grade 2 class 5
Age at release: 20