Ernesto and Valentina are sure of their relationship. It is late in the 19th century in Europe, and this sophisticated married couple consider that a little openly conducted outside dalliance only adds spice to their partnership. When the architect (Ben Kingsley) and his wife (Marie-Christine Barrault) spy an attractive and very much in love set of newlyweds at the resort hotel they are staying at, they set their sights on seducing both of them. However, though their effort to bring about the corruption of the newlyweds' innocence succeeds, it brings them far less satisfaction than they imagined it would. Though this is an Italian and French co-production, it was filmed separately in English and French.