Comrade X

Mac Thompson (Clark Gable) is a USSR-based American journalist who pseudonymously pens scathing dispatches from the Soviet Union on behalf of the anticommunist West. When Mac's cover is blown, he is lured into a blackmail plot wherein he must marry a streetcar conductor (Hedy Lamarr) and take her away from the USSR so that she can spread the gospel of Marxism-Leninism.