People are going missing. Only one thing links their cases. They all disappear on the hill. A woman vanishes in the fog up on the Hill in Lafferton. The police have one lead - a pair of expensive cuff-links found in her flat, with a mysterious note attached to them. Then a young girl, an old man and even a dog disappear in quick succession in exactly the same place. Young policewoman Freya Graffham and Chief Inspector Simon Serrailler are given the task of unravelling the mystery. But can they find the Hill killer before he strikes again?