Shen Moyan, a contemporary female forensic doctor, was pushed into a waste liquid pool by the real murderer while investigating a serial murder case. When she woke up, she found that she had traveled through time and transformed into the body of "Ayan", a woman from an ancient brothel - her face was destroyed and her body was thrown into a mass grave. She crawled out of the corpse pit, endured severe pain, and used modern forensic knowledge to prove her innocence and clear up her original grievances, attracting the attention of Gu Huaijin, the young minister of Dali Temple.
She discovered that 43 people had died in this town in five years, and all the murders pointed to the same net. She teamed up with Gu Huaijin to solve the Xiuzhuang massacre case, the River God marriage case, and the ghost market poisoning and murder case, and each case resulted in a narrow escape. The mastermind behind the scenes gradually emerged: the county magistrate Pei Yanzhi, who appears to love the people like his own son, and the mysterious woman Yun Ji who is proficient in toxicology - she is actually a surgeon who also traveled through time.
Yun Ji told her the truth: the real behind-the-scenes manipulator, "Tongtongren", used the "time rift" created by the confrontation between time travelers to feed on. When Shen Moyan traced the case to the court, he discovered that the "fellow traveler" was possessing the young emperor.
Shen Moyan exposed all the crimes in public in the hall and recorded the emperor's confession using the tape provided by Yun Ji. The emperor was deposed and the real murderer was brought to justice. Shen Moyan opened an autopsy shop and continued to use modern forensic techniques to speak for the dead with his sister Shen Nian, retired widower Granny Su, prisoner Yun Ji, and Gu Huaijin who resigned to follow her. Her knife will not be put away as long as there is a body that cannot speak.
Purpose: A female forensic doctor traveled to ancient times to solve many cases