Legendary kung-fu director Chang Cheh tries his hand at a cool swinging musical. In this caper, Taiwanese star Lin Chong plays a jewel thief who decides to turn over a new leaf. He opens a nightclub and starts anew as a professional singer. But before long, the rehabilitated thief becomes suspect again for a series of robberies. With the help of a girl (the photogenic Lily Ho), they set up a trap to snare the copycat thief but will it snare them instead?