Undercurrents surged in the rain-shrouded Gray City, and serial murders occurred one after another. The deceased were all middle-level members of the black gold group. The corpses were carefully trimmed like an undertaker. The Ace of Spades playing cards with the old police team numbers were always left at the scene, and they were called the Poker Killer by the outside world.
Xie Bian, an embalmer who lives in seclusion in a shroud shop, has superb skills and secretive actions. On the surface, he handles corpses for the Black Gold Group to cover up his crimes. In fact, he secretly implants chips to preserve evidence and uses the media and public opinion to set up a revenge chess game. He was once a police officer in the anti-narcotics detachment and was involved in the disastrous Etching Operation five years ago. Seventeen of his teammates and sixteen of them were killed. Only his whereabouts are unknown. Now he is back from hibernation and has set the ultimate revenge deadline for Nie Cangsheng's birthday party in thirteen days.
Interpol captain Lin Zhong investigates a series of murder cases, and discovers that every murder case is full of deliberateness and teasing. Following the stitching techniques of the corpses and old photos of mysterious playing cards, he unexpectedly discovers that the owner of the shroud shop is Xie Bian, who has been missing for many years, but he quietly escaped under his nose.
Nie Cangsheng, the leader of the Black Gold Group, is extremely sophisticated and has already seen through Xie Bi'an's identity and his obsession with revenge. He pretended to offer a reward for his arrest
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.