When Jake Boulder is asked to help investigate the murder of Kira Niemeyer, he soon finds himself tracking a serial killer who selects his next victim in a most unusual manner. As the body count rises, Boulder has to work with the police to identify the killer before more lives are taken. What ensues is a twisted game of cat and mouse. Only Boulder or the Watcher can survive.

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.

Detective Chief Inspector Harry Grimm is forced to take leave from Bristol’s Major Investigations Team when his boss, tired of Harry chasing the ghost of his murderous father, sends him north on secondment. Used to city life and high stress, Harry fears his life will now be spent handing out speeding tickets, finding lost sheep, and directing tourists. But when a local teenager runs away, Harry finds himself pulled into an investigation much worse than anyone could have ever expected.

Jerome Prentice is a good guy. Loyal to a fault, he always stays on the right side of the law. But everything changes the night he is awoken by the sound of masked kidnappers entering his home. Holding him at gunpoint, they drag his beloved wife, Alicia, out of the house with a promise to kill her if he goes to the police. Their demand: betray the company he’s worked for his entire adult life.

Former detective sergeant Norman Norman’s retirement is boring him to tears. So when he’s asked to assist an upcoming female DI and mentor a new team of misfits in a sleepy Welsh coastal town, he jumps at the opportunity. But the training has barely begun when a woman’s corpse washes up on the sand. With no reports of missing persons, DS Norman is stumped...until the post-mortem reveals a shocking hint to the culprit being local. But with a growing list of suspects who all have alibis, the experienced cop and his fledgling team’s first case could be their last.