When the mutilated body of a police officer is found in a derelict factory, the Hamptonshire police force is shocked to the core. DCI Helen Lavery returns from injury leave and is immediately plunged into an investigation like no other. Is this a random attack or is someone targeting the force? Organised crime groups or a lone killer? As the net draws in, Helen finds the truth lies closer than she could have imagined, and finds herself facing a twisted killer who will stop at nothing to ensure their secrets remain hidden. And time is running out...