A brutal killing has taken place on Scotland's most remote island, the Isle of Lewis. Detective Fin Macleod is sent from Edinburgh to investigate.Detective Macleod was born in Lewis, so this case represents a journey both home and into his past. He soon discovers that something lurks beneath the close-knit, God-fearing community – something primal. As he investigates further, secrets are unearthed, and he, the hunter, becomes the hunted …