Holly Wakefield works for the NHS as a criminal psychologist specialising in serial killers. She has particular reason to be good at her job – but she keeps that to herself. When DI Bishop from the Met Police approaches Holly to investigate a recent killing, Holly is horrified by the way the dismembered bodies have been theatrically positioned. More shocking still is when the pathologist reveals this is not the first time she has seen these mutilations. It means a serial killer is out there. Holly is used to chasing serial killers. But this killer has something in common with Holly that she’s kept hidden for as long as she can remember. . .