When Marion and Gilles host a dinner party, an air of intimacy born of too much wine causes them to share secrets with their guests that underscore their differences. During a previous milestone moment in their marriage, Gilles fails to show up at the hospital when their son is born because he is reluctant to accept the responsibility the birth entails. On their wedding night, when Gilles passes out, Marion unexpectedly has a sexual fling with a stranger. And finally, their very first romantic encounter takes place at a resort where Gilles is vacationing with his long-time lover.