 Soviet emissaries Buljanoff, Iranoff, and Kopalski no sooner arrive in Paris to sell some jewelry for the government, than soft capitalist ways begin to corrupt them. Grand Duchess Swana, former owner of the jewels but now exiled in Paris, sends her very good friend, playboy Leon d Algout, to interfere with the sale. When sly Leon meets stern Comrade Nina Ivanovna, sent to take over from the hapless emissaries, east-west romance results; but major complications intervene...