On New Year’s Day, Shetland lies buried beneath a deep layer of snow. Trudging home, Fran Hunter's eye is drawn to a vivid splash of colour on the white ground, ravens circling above. It is the strangled body of her teenage neighbour. As Fran opens her mouth to scream, the ravens continue their deadly dance . . .

The body is found close to the home of a lonely outcast and local suspicion falls firmly on him. But when Inspector Jimmy Perez insists on broadening the search for suspects, a veil of distrust and fear is thrown over the entire community. As the case develops, Perez finds himself peering deeper into the past of the Shetland Islands than anyone wants to go.