Dr Olivia Winter is a forensic psychologist whose job is to understand the minds of serial killers. There’s only one monster she can’t understand, her father.

Notorious and brutal, he held a reign of terror until he was caught.

His nine-year-old daughter was supposed to be his last victim, but she survived. Now, a serial killer is stalking the streets of London. As the body count rises, the police need Olivia’s help to profile him before he can strike again.

But to do so, she will need to confront her own demons…