Judge Antoine Verlaque and his girlfriend, law professor Marine Bonnet, are hoping to enjoy a relaxing holiday at the Locanda Sordou, an opulent hotel that is reopening after decades, but someone has other plans. Maxime and Catherine Le Bon have spent their life savings restoring the Locanda, which lies on an archipelago just off the coast of Marseille. The murder of one of the guests casts a shadow over everyone's vacation, and Verlaque and Bonnet are once again called to investigate. But things go from bad to worse when a violent storm cuts off all communication with the mainland. Will the killer strike again?