During the Northern Song Dynasty, eunuchs held power and folk monsters were rampant. In the city of Bianliang, there are numerous cults, with the largest force named 'Waijiuliu'. The Kaifeng Prefectural Government, led by Bao Zheng, Zhan Zhao, and Gong Sunce, made clear judgments on human cases, secretly adjudicating demon cases to maintain the balance of the world. Qianmian Youling, a member of the cult "Outer Jiuliu", disguised himself as Gongsun Ce and killed Situ Yang in an attempt to poison Bao Zheng. However, Bao Zheng discovered this and worked with Zhan Zhao to behead Qianmian YoulingHowever, Gongsun Ce's life and death are unknown, and Outer Jiuliu is planning a larger conspiracy. Seeing may not be believing, everything seems to be hidden in the mist