The Clue (2009)

Release Date: 2009-08-13
Runtime: 1h 26min
Production Company: Lotte Entertainment
Production Country: South Korea
Director: Lee Sang-yong

tells the story of Jung-hoon, an honor student who is involved in a murder case at his school. After finding his friend, Tae-gyu, murdered, Jung-hoon becomes the prime suspect. Da-jung, a student who believes in his innocence, helps him uncover the mystery and find the real killer before class resumes and the body is discovered.