When the bodies of unidentified young men start to show up around the city, beaten and full of the anaesthetic lidocaine, DCI Jeanette Kilburn and partner DI Lou Stanley are on the hunt for the killer. With a lack of evidence and pressure to solve the case mounting, Jeanette enlists the help of prime suspect Carl Lowry’s psychotherapist Dr Sophia Craven who offers a fresh but troubling perspective on the case. But with the killer inching ever closer to home, Jeanette and the team are in a race against time to untangle the web of secrets to solve this mystery.