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.
A somewhat silly and amateurish cop thriller. A lot of action but there's very little weight behind it. The movie jumps from scene to scene so fast it kills any type of suspense. The speed is so breakneck I doubt even the actors knew what they were supposed to be doing.