Kim Yo Han is a psychiatrist who gets involved in a serial murder when his car broke down on Christmas Eve during a sudden storm and he is forced to take shelter at a private high school. Seven students and a teacher are also there over the winter break, but they are gradually murdered one by one as they receive letters from a killer who wants revenge for the death of his mother and sister.
Sung Joon
Kim Sang-kyung
Lee Soo-hyuk
Baek Sung-hyun
Kim Young-kwang
Score: 6.6
Score: 7.3
Score: 6.7
Score: 5.7
Score: 7.8
Score: 6.6
Score: 7.3
Score: 7.7
