Su Yi, a new forensic doctor at the County Public Security Bureau, discovered a strange copper coin hidden between the nails of the deceased while dissecting an unknown female corpse salvaged from the river. As the investigation deepens, he continues to receive dreams from the deceased, clues pointing to the serial murders twenty years ago. What's even more frightening is that he found that he could see the last scene the deceased saw before his death, and the real murderer had been lurking inside the police station.
