The police seem convinced that the killer is one of the other passengers who had a cabin reserved for the journey. Fenella meets a group of suspects that includes a wealthy couple, an older man and his much younger wife, and a retired and incredibly nosy woman. Finding herself caught up in the middle of another murder investigation isn’t pleasant for Fenella. This time, Fenella is determined not to take any advice from her dead aunt who continues to occupy the luxury apartment that used to be her home. Her kitten, Katie, isn’t much help either, as she seems determined to cause as much mischief as she possibly can. While Fenella wants to help Inspector Robinson find the killer before he or she strikes again, things certainly aren't going the way she'd expected when she started her new life on the Isle of Man.