Saved by the timeliest intervention of some French troops, the "Count Walewski" (Henry Stephenson) and his younger wife "Marie" (Greta Garbo) are spared the excesses of the Russian soldiers who have forced their way into their home. Shortly thereafter, she is introduced formally to the all-conquering and very charming Napoleon Bonaparte (Charles Boyer) and after a bit of a rocky start, is soon subject of his letters declaring his undying infatuation. She decides that perhaps she can do more good for the future of her nation's independence if she plays along - even if this does alienate her…