When the murder was over, testimonies were burned, witnesses disappeared, and all evidence pointed to a perfect suicide. Criminal investigation captain Cen Zhaolin found an illogical fingerprint in the old case file, while forensic doctor Lin Shuye quietly hid half a page of burnt handwriting in the autopsy report. When the official announced that the case was closed, only they knew that the fire that night not only burned the evidence, but also burned the throat of the truth. The two secretly join forces in the shadow of power, using the remaining evidence and forgotten conversations to piece together a revenge map carefully planned by a serial killer - and the real prey is already among them.
