After being blacklisted for having communist sympathies as a student twenty years before, Pulitzer Prize-winning historian Tom Wrought escapes America's Cold War climate to teach at Oxford. There, he falls in love with Liz Spencer, a beautiful married woman. When Liz's husband is pushed in front of a train in the London Underground, Tom is immediately arrested for the murder. Scotland Yard is convinced it has its man, as he had means, motive, and...