A victim. A mutilated body. A single word. A young woman is found dead on the streets of London. Her throat slashed, her body mutilated, and one word carved into her flesh: 'DON'T.' Detective Superintendent Ray Paterson is assigned to the case. Young, handsome and from a wealthy background, he's tipped for the top. He joins a team based out of Bermondsey, South London. It's meant to be a stepping-stone to his next promotion, but this case will threaten to bring down his career and everything he thought he knew about policing. Paterson is put in charge of the dead girl's investigation and quickly discovers he must rely on his friend and mentor, Detective Sergeant Dave Jordan to guide him through. Then another body is discovered. Another word cut into the victim's chest. The police realise they may have a depraved serial killer on their hands. The murderer is trying to send them a message carved in his victims' bodies. But who's the message really for? How many more must die? Detective Paterson may be the only man who can stop this vile killer, if he can survive long enough.