One Christmas Eve, a carefree young man, Eric, arrives in a small provincial town. Here, he meets Julien, a bar pianist who is his exact double. Julien is in love with Marinette, a pretty waitress, but he is too shy to make any romantic overtures. Eric decides to give the course of true love a helping hand by pretending to be Julien. Meanwhile, Eric’s fabulously wealthy uncle has sent his minions out to bring him back home, so that he may celebrate Christmas in the bosom of his family.

Beautiful housekeeper Babette travels to England after the Nazis invade France. There, British intelligence devise a plan for Babette to sneak back home, where she could use her feminine charm on key Nazi officer Schulz, gleaning valuable information for England. However, Babette, although willing and spirited, is naïve and untrained, making her less than ideal for matters of national security.