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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.
First Air Date : Jan 30, 2011
Last Air date : Mar 20, 2011
Episode : 8 Episode
Season : 1 Season
Runtime: 69:14 minutes
Studio: KBS2
Country: South Korea
