The story of Doriana, a young lawyer, who moves to Rome, because a criminal she convicted has escaped prison and threatens to kill her. But the flat she takes in Rome doesn't bring her any luck either: In her new flat, unbeknownst to her, a call girl called Corinne has been stabbed to death almost a year ago, and the killer has never been caught. As soon as she lives there, she gets anonymous telephone calls and other hints to the murder. When she learns about the unsolved case, she starts to investigate by herself.