When Hong Kong is rocked by multiple gruesome murders, the police forms a task force to investigate. Jun, once a brilliant detective who suffered a mental breakdown, begins his own investigation. Eventually, the police learn that the murder victims are all suspects of cold cases being rubbed out by a figure known as "The Sleuth". Now, Jun and a detective from the task force are on a race against time to beat the brutal killer at its own game.

Detective vs. Sleuths

A young man and woman are meeting each other and establishes a special relationship due to debt problems. Him, finds that her have a singing talent and help her develop a singing career. For its part, he also strives to become the champion of the boxing championship. Both have the same state of mind and fight for their dream. Even if they burn their lives, they will have no regrets in this life.