1997, Causeway Bay. Lu Nian, a street gangster, accidentally obtained an antique pocket watch that could see the last seven seconds of the deceased's memory. This pocket watch became his key to solving the case, and also drew him into the center of the whirlpool of Hong Kong's underground world.
The Eastern District Police Station received a serial murder case. Three gang leaders died tragically one after another in strange circumstances. All evidence points to an orchestrated revenge. Lu Nian was involved. Using the special ability of his pocket watch, he discovered that each of the deceased had seen the same person before their death - Chen Yaozu, a red stick in the society known as the "Prince".
But Lu Nian didn't play by common sense. Instead of calling the police, he approached Chen Yaozu and used his "special ability" as a bargaining chip to make a deal with the devil. He has to walk a tightrope between black and white, while helping the police solve crimes, profiting from gang wars, and at the same time finding out the secret behind the pocket watch - who was the previous owner of this thing? What to die for?
As the investigation deepens, Lu Nian discovers that the real mastermind behind the serial murders is far crazier than he imagined. This is not a simple vendetta, but a sacrifice ceremony that has been carefully planned for ten years.
