Description: Patrolman Chan Chun Kit (Eason Chan) in Wan Chai District has lost his passion for the police because he has been doing very regular and unchanging work every day for seven years. When his junior sister Liao De Nan (Joey Yung) was sent to patrol with him, he saw that the other party was full of enthusiasm and seriousness. He would sneer from time to time. When he met the madman Wang Cheng (Francis Ng), Chan Chun Kit only pointed him out to Liao De Nan as a mental patient. After meeting Chan Chun Kit in a bus passenger's exposed weapon case, the 19-year-old innocent girls Nicole and Diet began to admire Chan Chun Kit, and Chan Chun Kit also felt the warmth from the two. Soon, a brutal rapist appeared in Wan Chai District, and many single women were raped and killed by him, and Diet was not spared. This incident prompted Chan Chun Kit to wake up from his numbness, and he began to hunt down the murderer like crazy.