There was once a genius who solved several cold cases from a young age. At the peak of his fame, he suddenly vanished from public view and was never heard from again. No one knew where he had gone.
Years later, on a quiet night in Tianjun City, auxiliary police officer Zhou Ze was helping his criminal-investigator friend solve a case. They soon found a lead to the killer, only to discover that there was something very wrong with him…
The genius who had been missing for years returned, but now he had become the criminals he had once caught, one after another. Was he still himself? Or had the real him never appeared in the first place…
