Senior inspector CHEUNG WAI-KIT breaks into a crime ring and successfully arrests the robbers. Exhausted after the work, he stays home to rest while his wife HAU-YEE goes to the beach, accompanied by his sister KA- MAN. LAM CHI-CHUEN, a persistent open admirer of KA-MAN, follows them. An accident causes HAU-YEE to fall into the sea while KA-MAN and CHI- CHUEN panic over her disappearance. She has been taken to hospital by. a rich playboy CHEUK YIU-CHO. After the incident, HAU-YEE observes that CHEUK often hangs around her flower shop, and suspects that she is his target. Sunny, an assistant in HAU-YEE's flower shop, is found dying of sex torture. CHEUK invites HAU-YEE and CHI-KIT to attend a party. He makes a pass on CHI-KIT and invites him to bed.