Detective Xu Yougong.

The heads of Li Changfeng and Qin Ruoshi appear in the ancient tomb in the south of the city. Li Changfeng once sent Xu Gongyou and Wu Hongxiu to prison for injustice. Wu Hongxiu took the blame and let Xu Gongyou be released from prison for investigation. Xu Gonggong targeted Li Zhong through clues and found a conspiracy letter in the secret room of the tomb path. At the critical moment, the masked man tried to silence him. Fortunately, Wu Hongxiu led people to capture the masked man, and the truth finally came to light.