Suzanne Perry is having a vivid nightmare. Someone is in her bedroom, touching her, and she can't move a muscle. She wakes, relieved to put the nightmare behind her, but when she opens the curtains, she sees a polaroid stuck to the window. A photo of her, sleeping, taken during the night. And underneath, the words: "I'm watching over you." Her nightmare isn't over. In fact, it's just beginning. Detective Inspector Phil Brennan of the Major Incident...