In the prosperous and prosperous Tang Dynasty, the people of Chang'an City enjoyed a happy life, but a severed arm appeared openly on the streets of Chang'an, a brothel dancer had her eyes gouged out, and the Chang'an Ling's wife had her tongue cut out. People in Chang'an were panicked for a while, and the emperor ordered Chang'an to find out the murderer within half a month. Chang'an ordered Li Heming, his cousin Li Qingyun, and bodyguard Yuan Cheng to work together. When they found the murderer, they were stopped by a eunuch next to the emperor. Later, the murderer died inexplicably, and Li Heming resigned. Later, he repeatedly solved strange cases. During the investigation of subsequent cases, Li Heming discovered that these cases were related to the previous case, and contained a huge conspiracy.
