Bhagyalakshmi, a young woman, has a car accident while returning from a party and is hospitalised with severe head injuries. When she recovers, she is diagnosed with retrograde amnesia and she fails to recognise her own parents. She mentally regresses to the state of a child. While she is undergoing treatment, she is kidnapped and sold to the madam of a brothel. R. Srinivas, also known as Cheenu, comes to Chennai to meet his old friend. Together, they visit the brothel to relax. The madam sends Bhagyalakshmi, renamed Vijaya, to his room. Cheenu realises that she is mentally still a child and pities her. He learns that she is from a cultured family, and that she was kidnapped and forced into prostitution.