Talk about hoist by your own petard! Rod Steiger is the manipulative British/German businessman "Chaffner" who has embezzled a great deal of money from his business. Bent on escape from the USA to Mexico, he gets his train timings wrong! Facing capture, he drugs a fellow passenger and steals his identity. Initially that seems like a good idea, he even makes it to Mexico - only there does he discover that the man he is pretending to be is even worse than him and the Mexican authorities, as well as pursuing Scotland Yard Inspector "Hayden" (Bernard Lee) turn the tables on their quarry in an ingen... lees de rest.