He stands in the shadows. Watching them. DI Sara Ramsey's life is about to change forever. Recently moved to the area and in charge of a new team, she's tasked with finding a serial killer terrorising a rural community. Crimes as heinous as this rarely happen in picturesque rural idylls. The community is living in fear, desperate for Sara to keep them safe. When the killer changes his MO and abducts a vulnerable resident, Sara realises she is in a race against time to prevent the killer from claiming yet another victim.

Was the biggest case of his career the worst mistake he ever made? Ten years ago, DCI Jack Logan stopped the serial child-killer dubbed "Mister Whisper", earning himself a commendation, a drinking problem, and a broken marriage in the process...When another child disappears a hundred miles north in the Highlands, Jack is sent to lead the investigation and bring the boy home. But as similarities between the two cases grow, could it be that Jack caught the wrong man all those years ago?

DI Sally Parker has a serial killer on her patch. One thing that sets this killer apart from the others she's hunted before: his willingness to leave DNA at each of the crime scenes. It's up to Sally and her partner, DS Jack Blackman, to find out why before the body count rises to double figures. While Sally is engrossed in the investigation, her ex-husband, Darryl, pays a surprise visit to her new home.

D.I. Duncan McAdam is dispatched home to the Misty Isle. A body has been found buried in a remote location on the Waternish peninsula. Well-preserved in the peat, Isla Matheson—missing for the better part of two decades—is revealed to a shocked island community. A teenage runaway is dead...and no one is talking.

There's a serial killer targeting the streets of Newcastle, seemingly picking his victims at random but subjecting them all to the same torturous end. When the Chief Inspector on the case goes missing, it falls on DCI Ryan to track down the man who is brutally murdering women and goading the police to 'catch me if you can'. As everyone becomes a suspect, Ryan and his team get drawn further and further into the case, but for Ryan the nightmare gets closer to home than he could ever have imagined.