Janaki has a brother named Subbu and sister Kameswari. They both are mentally retarded. Janaki takes good care of them. Janaki's husband has an affair with Devi. Janiki's husband kills Janaki and puts the blame on Subbu and Kameswari, so that he can marry Devi and gets his father-in-law's money. In the mean while his father-in-law fixs Subbus marriage with a lady named Radha. Janaki's husband kills his father-in-law by playing a trick on Subbu and Kameshwari.At the end Radha grabs the real facts, calls the police and sends Janaki's husband to jail.