The prostitute of Xiaoliu (played by Ronnie Cheung) was shot and killed in an unethical transaction. The person who opened the room with her was the senior inspector-Gao Kun (played by Simon Lui), who was forced to suspend his duties in the police force. Gao Kun's girlfriend Joey (Grace Lam) is also a policeman, and his boss Zhang Sir (Wang Hexi) approved to take over the investigation. For this reason,... see more