As Scotland Yard chief forensics detective Eric Shaw works a case with some resemblance to a crime he investigated 20 years earlier, he is convinced it is just a coincidence. But when more deaths occur in a style similar to those killings from the past, Shaw suspects that he has a serial killer on his hands – one who is pursuing a personal, cold-blooded vendetta.
Working closely with his protégée, Detective Miriam Leroux, Shaw analyzes the crimes down to the finest detail. He finds himself increasingly drawn to the lab, where criminologist Adele Pennington, a beautiful, enigmatic woman more than two decades his junior, proves distracting. Determined to maintain his professionalism despite the attraction, Shaw struggles to keep her at arm’s length. Yet Pennington’s unique insight proves critical, and as the investigation develops, so does their personal connection. With a killer on the loose, Shaw must follow a winding, blood-soaked trail that will take him in an unexpected and terrifying direction.