The movie is based on a triangular love story and friendship. Sujit (Shammi Kapoor), Shyam (Prem Chopra) and Jenny (Helen) work together in an orchestra, Jenny as a dancer, Sujit as a singer and Shyam at a playing an instrument. They work in a hotel under their boss Max. Shyam intially found Jenny and convinced her to join their group. But Sujit stole away Jenny's heart. Shyam and Sujit, were best friends. Soon Sujit and Jenny were about to get married, but Max ( boss) didn't like this since this could affect his business. One day Max was fighting with Sujit over this topic and accidentally Shyam murdered Max in order to save Sujit. But Sujit for the sake of friendship took the blame on himself. But later started behaving like a mental patient in order to escape from imprisonment. The court summons Sujit to a mental hospital for treatment . There he was treated by doctor Shalini (Asha parekh). She soon gets to know that Sujit is faking his illness, but Sujit convinces her of not being guilty by disclosing his truth and love. Within a few days he is discharged from the hospital. In the meantime, Shyam rapes Jenny and forces her to marry him. Sujit unaware about Jenny's condition is shocked to see Shyam and Jenny married. He goes through mental trauma and results in him becoming a real mental patient. He also loses his memory. He is again sent to the mental hospital under Dr. Shalini. Dr. Shalini uses both medical and an emotional touch to heal Sujit, she also proves Shyam as guilty in front of Sujit, in doing this process she started liking Sujit and even Sujit falls in love with her.