Dushman is an action drama. The movie revolves around a young man named Rakesh (Mithun Chakraborty), who was separated from his father at a very young age after he was framed for fraudulent activities by a local gangster. Rakesh grows up and joins the gang of an experienced gangster, and has a mission to take revenge for his father. However, little does he know that his father is alive and has decided to take matters in his own hands. Will the two ever meet and jointly set the scores right with the gangster who ruined their family?