In this modern-day comedy of manners, American sisters Isabel and Roxy come face to face with the complicated social mores of French society. Pregnant and jilted by her scoundrel husband, Roxy is headed for divorce, while Isabel leaps into l'amour with a married French diplomat who happens to be the uncle of Roxy's soon-to-be-ex. Culture clash and scandal ensue as the sisters learn what it really takes to be an American in Paris.