Yoon Bum is a young, mentally ill man with a difficult past. After becoming infatuated with Oh Sang Woo, a peer from his time in the military who saved him from a rape attempt, he decides to enter Sang Woo's home while he is out of his house. Yoon Bum finds a tied up, bruised woman in Sang Woo's basement and before he is able to free her, he is discovered by Sang Woo, who is re...