Two apparently unrelated deaths draw DI Andy Horton into the dangerous current of a complex and disturbing case. DI Andy Horton's meal with his old friend, Inspector John Guilbert of the States of Guernsey Police, is cut short when a smartly dressed, affluent woman is found dead in her cabin on the ferry from Portsmouth to Guernsey. There doesn't appear to be any suspicious circumstances. As soon as he returns to Portsmouth, however, he is called to the scene where a vagrant's body has been found lying partially covered under one of the rotting houseboats close to Horton's boat in the marina. This time, it's clearly murder. Troubled by the many unanswered questions surrounding both deaths, Horton must call upon all his skills and intuition to solve a complex case, uncovering dark secrets that have led to such lethal waves of destruction.