The agonizing sound of a woman's scream hurls Tom Austen into the middle of a murder plot on board the sleek passenger train The Canadian. Who is responsible for the death of lovely Catherine Saks? As Tom investigates the strange collection of travellers who share Car 165, he gets closer and closer to the truth . . . and then without warning, he is suddenly face to face with the killer, and his own life is threatened in the most alarming possible way.