On the Double Ninth Festival, Lin Jin, the daughter of the prime minister, took the opportunity to go to Guangming Temple to worship her ancestors and study a new autopsy method with her mentor. Unexpectedly, a headless female corpse was discovered in the backyard of Guangming Temple, and Lin Jin was mistaken for the murderer. In order to clear out the charges and find the truth, Lin Jin and Dali Temple Shaoqing Xiao Yao launched a series of investigations. However, the case was complicated and confusing, and gradually involved several old cases. As the case was solved, Lin Jin and Xiao Yao were also involved in more serial murders. Crow, Heart Bridge, Bingdihua, Living Coffin, Eighteen Hells, every murder case hides countless secrets, and the source of all the secrets actually points to the same conspiracy...