Police psychologist Karen Vale investigates a series of gruesome murders. Successful, beautiful women become victims of an unknown maniac. If Karen understands what unites them, she will be on the trail of the criminal. Every day she plunges deeper into the investigation and tries to penetrate the mind of the killer. Suddenly, the psychologist begins to see the maniac's dreams. In her sleep she kills her own mother! Why does this happen? What unites her with the criminal? Colleagues suspect that Karen is the unknown killer. Is this really so? Who will be the seventh victim? It's time to find out the shocking truth...