An unmanned luxury yacht crashes into the harbour wall in Reykjavik. What happened to the crew, and to the young family who were on board when it left Lisbon? Thóra Gudmundsdóttir is hired by the young father's parents to investigate, and is soon drawn deeper into the mystery. What should she make of the rumours saying that the vessel was cursed, especially given that when she boards the yacht she thinks she sees one of the missing twins? Where is Karitas, the glamorous young wife of the yacht's former owner? And whose is the body that has washed up further along the shore?