The new thriller from the bestselling author of Ragdoll features a detective with no one to trust and a killer with nothing to lose. Eighteen months after the Ragdoll murders, a body is found hanging from Brooklyn Bridge, with the word 'BAIT' carved into the chest. In London, a copycat killer strikes, branded with the word 'PUPPET', forcing DCI Emily Baxter into an uneasy partnership with detectives Special Agents Rouche and Curtis. Each time they trace a suspect, the killer is one step ahead. With the body count rising on both sides of the Atlantic, can they learn to trust each other and identify who is holding the strings before it is too late?.