A storm-battered island. Cut off from the outside world. Yet crime is already present. Fair Isle, the most remote island in the North Sea. This is where Detective Jimmy Perez was born, and here he wants to introduce his fiancée Fran to his parents. But instead of a harmonious family weekend, the couple faces a nightmare: upon their arrival, the head of the bird sanctuary is stabbed to death. Shortly after, a second murder occurs. Due to a storm, the small island is soon isolated from the outside world. Left to their own devices, Perez and Fran begin to investigate. One thing is certain: the murderer must be among them. The plot is breathtaking, the setting unique.