During the Tiansheng period of the Northern Song Dynasty, Shen Mo, a new scholar in Kaifeng Prefecture in Bianjing, was accidentally involved in the "Demon Fox Serial Case" and was forced to form a crime-solving partner with Zhao Hu, the headman of Kaifeng Prefecture, and Su Xiaoyu, the daughter of a widower. The three of them wandered through the streets and temples, and in the process of solving a series of strange cases, they gradually discovered that these seemingly independent cases actually pointed to a shocking secret that existed twenty years ago - the deposition of the former prince and a buried palace murder.
Shen Mo is good at meticulous logical reasoning, Zhao Hu is familiar with the world, and Su Xiaoyu is proficient in local customs and autopsy techniques. The three of them solved the mystery amidst jokes and jokes, and got closer to the truth amidst laughter and tears. When the last piece of the puzzle fell into place, they discovered that the person hiding in the shadows and manipulating everything was the most unexpected person around them.
