Top forensic doctor Gu Yan discovered a set of abnormal traces during an ordinary autopsy, which was highly consistent with the "traceless serial murder case" that shocked the city ten years ago. It became an unsolved case due to technical limitations, but now he decided to restart the investigation. Every time I take over a new corpse, it's like deciphering a secret letter from the deceased. The fragments of clues gradually piece together a criminal network covering both political and business circles. At the same time, copycat crimes, internal leaks, and mysterious deaths of key witnesses occurred one after another. Gu Yan had to run between the autopsy table and the crime scene, speaking the unfinished words of the deceased in the most precise scientific language, and finally forced the "scavenger" hidden behind the perfect crime to surface.
