The return of DS Royston Chase and DC Claire Laney.

The frozen corpse of a female hiker discovered on snow-covered downs presents DS Royston Chase, DC Claire Laney, and Trainee DC Alison May with a fresh murder case to investigate.

The more the body thaws the more it reveals, and as the investigation gathers momentum hopes are dashed of an early and successful outcome. It soon becomes clear that the victim and her killer were not the only ones on the hillside when the murder occurred, and the police are desperate to locate everybody who was.

But when the operation is interrupted by a series of related abductions, with all witnesses swiftly falling under suspicion, Chase realises that their case is far more complex than any of them could ever have imagined...