Chow Ting-fat (played by Chow Yun-fat) is a wealthy and charming businessman who manages to marry two beautiful women—Sally (Sally Yeh) and Joey (Joey Wong)—without either of them knowing about the other. He tries to balance his double life while keeping the secret from both wives.

The film revolves around his increasingly absurd attempts to juggle the relationships, leading to many comedic misunderstandings, slapstick humor, and close calls.

The story is a lighthearted satire of male fantasy and polygamy, with the film’s humor coming from Chow Yun-fat’s charisma and the constant tension of being found out.