4th Period Mystery(2009)

movie - first aired/released 2009-08-12 - 86 min - audience 5.8

Crime, Mystery, Thriller, Action

Directed by Lee Sang-yong

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.