Dogan lives together with his sister Nuran. They rent one room of their flat to Murat, who is a cab driver. Dogan falls in love with his boss's mistress Alev. Murat and Nuran want to marry, yet Dogan opposes. Dogan gets fired, Alev leaves him. Dogan wants to rob his boss, as the guardian tries to stop him he shoots the man. It is on his sister's wedding night. The wounded man informs Murat. He goes to the office, the police finds him near the murdered man and is jailed. Dogan regrets and kills Alev. After he surrenders, Nuran and Murat get together again.