"Bolton is hot property in crime fiction right now". (Stylist Magazine). "Mesmerising". (The Times). A series of suicides. Each one a female university student. Each one more horrifying than the last. The police know it cannot be coincidence. But they can't prove it. They need someone to go undercover. A young policewoman, as vulnerable as the others. As unprepared for the nightmare that will greet her. Watch your back, Lacey Flint...