The story takes place in a small detective agency, where the owner is a man named Jiang Taixi (played by Xue Jingqiu). Jiang Taixi, who was once a powerful figure in the police, is also handy as a private detective. One day, Jiang Taixi accepted a commission to investigate an affair, and this seemingly ordinary commission completely broke Jiang Taixi's peaceful life. When he came to the scene of the incident, Jiang Taixi, who thought he would see an erotic scene, saw a female corpse appear in his field of vision. The subsequent riot made him realize that he had fallen into a trap woven by someone. Jiang Taixi received a mysterious call. The person on the phone told Jiang Taixi that if he wanted to regain his innocence, he had to do it according to his instructions, and Jiang Taixi's every move was in the eyes of this mysterious person. In order to regain his freedom and to find out the truth of the incident, Jiang Taixi's escape began.