"A film arrives at the National Criminal Investgation Department in Stockholm. It shows a woman, alive, being filmed through the window of her house. She does not know she is being watched. The police don't take it seriously. Until she is found dead. When the next video arrives, Detective Margot Silverman frantically searches for any way of identifying the victim. But it is already too late. Because at the time the video was sent, the subject was already facing the terrifying final moments of their life. And without anything to link the victims, the police are powerless to help them. Soon Stockholm is in the grip of terror. Who will the Stalker target next?"--Back cover.