Rose is forced to confront his choices as Baxter tries to help him choose a path of redemption. Baxter and Edmunds are faced with a difficult decision as Rose's name becomes that last one left on the kill list. Edmund's dark past is revealed.

Rose and the Ragdoll killer engage in a sadistic game of cat and mouse in which Rose is pushed to the edge. Baxter goes back to basics to try and track down the killer while Edmunds' piqued suspicions put her on the right track but also land her in grave danger.

In order to protect the next person on the kill list, Rose and Baxter attempt to outwit the Ragdoll Killer with an unorthodox plan. Edmund's past catches up with her as she investigates Rose and his unusual behavior. The team finally get their first tangible lead on the Ragdoll killer.

Rose's erratic behaviour raises questions for Edmunds. With the killer one step ahead, Baxter's plans to protect a victim go awry with devastating consequences and frustratingly they are forced to watch the Ragdoll killer's horrific plans play out.

With the Ragdoll Killer proving unstoppable, the team desperately hunt down the second victim on the list. When hazy memories from the past surface, a frantic Rose starts his own investigation into the case and his dubious interview tactics cause concern for Edmunds.

A gruesome discovery at a block of flats sets DI Baxter, DS Rose and DC Edmunds on the trail of the Ragdoll Killer who also lists six more people due to die. For the team it's a race against time to find the victims and track down the macabre killer before he strikes again.