Wah Dee (Andy Lau), a young Triad (underground societies) gangster, is the crime scene getaway in a jewelry store robbery. When the raid goes wrong, he takes a young woman named Jo Jo (Jacklyn Wu) hostage. The head of Wah Dee's gang, Trumpet, demands that she be killed, but Wah Dee resists and saves her. While Wah Dee tries to act coldly towards JoJo, she expresses gratitude and affection towards him, who, on the other hand, also starts to fall in love with her.