On a rainy night, a female corpse. Forensic doctor Lin Xi was stunned on the autopsy table - the crescent-shaped scar on the inside of the little finger of the deceased's left hand was exactly the same as that of his friend who was murdered fifteen years ago.
One case leads to another. A button, a photo, a person always hiding behind the camera. He photographed every murder, recorded every death, and photographed her for fifteen years.
When Lin Xi finally stood in front of the truth, she realized: What she had been chasing all these years was not the murderer, but a pair of eyes that had always been looking at her.
This time, she decided not to be just the one to be watched.
