At a party somewhere in Paris, apprentice filmmaker Boris and young executive Marilyne act the part of a loving couple when, in fact, they have only just met. Fiction becomes reality when they do fall in love.Five years later... Marilyne goes to Ibiza on a business trip, accompanied by Boris and their two children. Boris, tired of being a househusband, is on the point of leaving her, when Marilyne takes off on a lover’s spree.Five years later... Marilyne reappears in the depths of the Pyrenees leading a group of American women on a ’personal growth’ tour. She learns that the man who is to introduce them to the mysteries of grouse mating rituals is none other than Boris. Just as, ten years earlier, they had played at being intimate when they were scarcely acquainted, Marilyne and Boris will now pretend to be strangers when they know each other intimately...