A smug wealthy bourgeois,Monsieur Dupont ,wants his daughter Paulette ,fresh from a Spanish convent,to marry an aristocrat's son Robert she never met before :thus she will become countess De Trivelin !There's just one problem:Paulette ,an ingenue ,is clueless.So her father asks a friend of the family ,a not-very-handsome Désiré, to introduce her to the joys of modern life:tennis, horse-riding...Of course the young man falls in love with Paulette ,but her dad does not want to hear of it: she marries her count.However,Désiré does not take no for an answer ....During the honeymoon ,strange things happen to the noble groom.