Detective Emily Baxter is still reeling from the Ragdoll case, and from the disappearance of her friend, William “Wolf” Fawkes. Despite her reluctance to jump into another gruesome case, she’s summoned to a meeting of a new FBI/CIA/UK law enforcement task force in New York. There, she is presented with photographs of the latest copycat murder: a body contorted into a familiar pose, strung up from the Brooklyn Bridge, the word “BAIT” carved deep into its chest. As the media pressure intensifies, Baxter is ordered to assist with the investigation and attend the scene of another murder, again with a victim inscribed with a word: “PUPPET.” Baxter must shake off the grief and fear that have paralyzed her for the last year so she can stop another terrible killer before it’s too late.

William Fawkes, a controversial detective known as The Wolf, has just been reinstated to his post after he was suspended for assaulting a vindicated suspect. Still under psychological evaluation, Fawkes returns to the force eager for a big case. When his former partner and friend, Detective Emily Baxter, calls him to a crime scene, he’s sure this is it: the body is made of the dismembered parts of six victims, sewn together like a puppet --- a corpse that becomes known as “The Ragdoll.” Fawkes is tasked with identifying the six victims, but that gets dicey when his reporter ex-wife anonymously receives photographs from the crime scene, along with a list of six names, and the dates on which the Ragdoll Killer plans to murder them. The final name on the list is Fawkes.