Here we encounter Guy Haines and Charles Anthony Bruno, passengers on the same train. But while Guy is a successful architect in the midst of a divorce, Bruno turns out to be a sadistic psychopath who manipulates Guy into swapping murders with him. ‘Some people are better off dead,’ Bruno remarks, ‘like your wife and my father, for instance.’ As Bruno carries out his twisted plan, Guy is trapped in Highsmith’s perilous world, where, under the right circumstances, anybody is capable of murder...