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. 

Two skeletons are discovered in Lamentation Tarn, a mountain lake. Talented detective Mike Nash and his team have little evidence with which to work, until a surprising discovery prompts them to contact law enforcement agencies in Eastern Europe.

A killer stalks the streets of London, murdering the richest people in the capital. Is this the work of a serial killer, or just someone angry with the super rich? Or is there another reason why billionaires are being killed every three days? Detective Inspector Simon Wise, reeling from the death of his partner and harbouring more than a few secrets of his own, is assigned to the case. But the killer leaves no clues as to their identity, only bodies in their wake, and each new death sends Wise's team in startling new directions.

Detective Sara Hirst has moved from London to Norfolk Police's Serious Crimes Unit. She wants to know the truth about her father, who has connections to the area. Her mother won't tell her the real story. A new job. A new place. Same old problems. Sara's first call-out is to a decomposing body discovered in a ditch on a local farm. How does the murder relate to a recent spate of thefts? Who wanted the victim dead? Then the case grows very personal.

Haunted by his inability to track down and save his missing wife, DCI Robert Kett leaves the Metropolitan Police behind and moves to Norwich with his three young children, hoping to heal their broken family. But his newfound peace doesn’t last. Two newspaper delivery girls have gone missing in the city, and the clues point to a serial kidnapper. Kett is dragged into the centre of one of the darkest cases of his career - a case that pits him head-to-head against a horrifying evil.