A well known scientist named Wilson is working on a secret project. He believes that every human being has a good side and an evil one. The two qualities can be separated from each other to enhance the good side while getting rid of the bad one. He thus works hard and prepares a portion that will do exactly that. He thus decides to test the portion first on himself. However it does not work as he expected that things go horribly wrong. His evil side overpowers his good side and he cannot control his actions anymore. The film is directed and produced by Raj Tilak. The music is composed by N Dutta. The star cast includes Sanjeev Kumar, Vinod Mehra, Shatrughan Sinha, Rekha, Amol Palekar, Amjad Khan, Iftekhar, Sulakshana Pandit and Rajni Sharma.