Paap Ki Kamaee is an action drama. The movie revolves around an honest CBI officer Ashwini Kumar (Mithun Chakraborty), who finds some evidence against Dr. Yadav (Prem Chopra) and his politician friend and their gang. Dr. Yadav has made a huge amount of money by means of criminal activities. He gets hold of the file holding evidence against him. Later, Yadav appoints a man named Deva (double role by Mithun Chakraborty), Ashwini’s lookalike, to kill Ashwini and take his place to help him carry out his evil plans. Will Ashwini ever learn about Yadav’s evil plan? Would he be able to save himself from Yadav and his gang?