The suspended detective Shan Yu is very good at catching adulters. he simply carries out a sideline and specializes in providing services for catching traitors. Three days after his deputy post, he took over a new case, but there were two bodies waiting for him at the scene, and the only witness was Xiuzhen, the wife of one of the dead. [not just Xin Ying] Shanyu suddenly fell into a desperate situation and inexplicably became a suspect. In order to find out the truth, clear the name, and find out the real killer, Shanyu struggled extremely, but the situation further worsened. On the other hand, Shan-Yu also developed a dangerous and ambiguous relationship with the beautiful and charming Xiuzhen, making himself deeper and deeper in the labyrinth.