When a landslip on Pembrokeshire’s stunning coastal path reveals the harrowing remains of two bodies, ex-DCI Evan Warlow’s quiet retirement is shattered.

When a grisly murder occurs on the Isle of Lewis that bears similarities to a brutal killing on the mainland, Edinburgh detective Fin Macleod is dispatched to the Outer Hebrides to investigate, embarking at the same time on a voyage into his own troubled past. As Fin reconnects with the people and places of his tortured childhood, the beautiful island and its ancient customs once again begin to assert their grip on his psyche. Every step toward solving the case brings Fin closer to a confrontation with the dark events of the past that shaped - and nearly destroyed - his life.

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.

The "maddog" murderer who is terrorizing the Twin Cities is two things: insane and extremely intelligent. He kills for the pleasure of it and thoroughly enjoys placing elaborate obstacles to keep police befuddled. Each clever move he makes is another point of pride. But when the brilliant Lieutenant Lucas Davenport, a dedicated cop and a serial killer's worst nightmare, is brought in to take up the investigation, the maddog suddenly has an adversary worthy of his genius.

It was meant to be a harmless stag-night prank. A few hours later, four of his best friends are dead, and Michael Harrison has disappeared. With only three days to the wedding, Detective Superintendent Grace - a man haunted by the shadow of his own missing wife - is contacted by Michael's beautiful, distraught fiancée, Ashley Harper. Grace discovers that the one man who ought to know Michael Harrison's whereabouts is saying nothing. But then, he has a lot to gain - more than anyone realizes.