A brutal killing takes place on the Isle of Lewis, Scotland: a land of harsh beauty and inhabitants of deep-rooted faith. A murder. Detective Inspector Fin Macleod is sent from Edinburgh to investigate. For Lewis-born Macleod, the case represents a journey both home and into his past. A secret. Something lurks within the close-knit island community. Something sinister. A TRAP. As Fin investigates, old skeletons begin to surface, and soon he, the hunter, becomes the hunted.