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This imitation-Lubitsch romantic comedy stars William Powell as an elegant jewel thief plying his trade in Vienna. Powell's latest victim is bored baroness Kay Francis, who is much taken by the gentleman crook's handsomeness and poise. Since Francis is casting about for a new lover and newer thrills, Powell meets her qualifications, criminal or no. But the lady's husband (Henry Kolker) is not so easily charmed, and he sets about to bring Powell to justice. Jewel Robbery was based on a play by Ladislas Fodor, previously filmed in an Austrian version.