Lin Wen, a high school Chinese teacher, dropped off four female students from his class one evening. One of the girls was raped and killed that night, and Lin Wen was interrogated as a suspect. 48 hours later, due to insufficient evidence, he wasRelease. However, his experience has only just begun. Lin Wen and his family have undergone earth shattering changes. In order to clear suspicion, he is alone and gradually approaches the real culprit