Overview
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.
Cast
- Sung Joon as Choi Chi-hoon
- Kim Sang-kyung as Kim Yo-han
- Lee Soo-hyuk as Yoon Soo
- Baek Sung-hyun as Park Mu-yeol
- Kim Young-kwang as Jo Young-jae
- Kwak Jung-wook as Yang Kang-mo
- Hong Jong-hyun as Lee Jae-kyu
- Esom as Yoon Eun-sung
- Kim Woo-bin as Kang Mi-reu
- Jung Suk-won as Yoon Jong-il