Amanda Lipton leads a fairly uneventful life as a teacher. The most she has to worry about is staffroom politics and petty quarrels among pupils and colleagues. And then she wins a million in a TV show. Life is about to change in ways she cannot possibly have anticipated. To escape the stuffy atmosphere at school, Amanda decides to change her life and take a luxury cruise, no expense spared. Expecting a life of calm and luxury aboard the Belgravia, she is dismayed to find events rapidly spiralling out of control. Her fellow passengers, especially the man she is drawn to, are not as they seem. When she witnesses what looks like a cold blooded murder, Amanda realises that her own life could be in danger.