Disc jockey Piggy Chan (Leslie Cheung), mechanic Sapi (Meng Hoi), and cousin Hayden (Jimmy Wong) formed a trio: Lovebusters. Piggy falls in love at first sight with Jane Yu (Loletta Lee). He tears down all obstacles to win her heart. With the victory, he resumes his inclination to flirt around. His friends and relatives are very upset to see him deserting Jane. On the other hand, Sapi and Piggy's sister Mabley (Ann Bridgewater) are deeply in love. Piggy is very furious when he discovers their love affair. However, he finally decides not to intervene because Sapi has a fatal disease.