Ming Wei, the chief medical examiner of the Linjiang Forensic Center, relied on his keen professional skills to discover anomalies in a seemingly ordinary female drowning case - the fibers in the nails of the deceased were completely consistent with an unsolved case three years ago. As the investigation deepens, more corpses appear one after another: a second corpse carefully placed in the center of the stage of an abandoned theater, a medical student with a scalpel next to him... All clues strangely point to Ming Wei's father, the famous surgeon Ming Zhenguo.
Criminal police captain Lei Rui and newly transferred detective Qiao Zifeng join the investigation with their own minds: Lei Rui holds a secret file on a medical accident twenty years ago, and Qiao Zifeng's sister was the victim of the unsolved case three years ago. When Mingwei discovered the figure that had been deliberately cut out from the old photos in her father's study, she realized that the murderer not only knew about her father's past, but was also using the corpse to piece together a revenge that spanned twenty years.
