 A serial murderer kills prostitutes. Inspector Murat investigates the case. The murderer s last victim is a prostitute working in a club. The victim s sister Melek goes to boarding school and doesn t know anything about her sister s profession. As she finds out, she is extremely disappointed and hides this it from her boy friend Aydin. Planning to find the murderer, Melek starts singing at her sister s night club. Other girls and her friends get killed, too. In the papers she sees the drawn pictures of the serial killer and she identifies him. Melek gets witness protection and Murat restores Melek and Aydin s broken relationship. However, the killer is lunatic. He chases Melek, yet Murat and the police shoot him and save the girl.