The Royal Scoundrel

Beach Boy (Tong Leung) and Mrs. Chow (Ng Mang Tat) have been partners in police force for years. While investigating a case involving fake money, Beach Boy met Ah Yuk (Wu Chien Lien) whose step-father was one of the members and was arrested by him. Ah Yuk was alone in Hong Kong and Beach boy fell in love with her. Beach Boy's superior, Inspector Lee Nam (Lee Chi Hung) who appears to be honest is actually one of the Taiwanese group. He set up Beach Boy and Mrs Chow. He also courted Ah Yuk... (imdb)