4th Period Mystery
8/12/2009
Imdb: tt1810510
Tmdb: 45079
Popularity: 4.54
Vote: 6.1/10 (20)

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.