Peroxide homicide [US & CA only version].

When working a night shift at Manchester's inner-city morgue, forensic pathologist Karen Laos finds herself with the body of an unknown male, apparently murdered by a killer she had pursued six years before. Karen reunites with ageing policeman Detective Inspector James Roberts and together they must identify, locate and catch the killer taunting them both. With an appetite for ritualistic murder and an array of alarming and unusual methods, there is a real threat that this killer will elude their grasp and strike again, leaving only mutilated victims in his wake.