A Parisian dinner party sets the stage for this comedy of manners about a group of acquaintances and their dysfunctional romantic relationships. As the guest list grows, a simple outing unravels into chaos. The attendees include married hostess Marie-Laurence, who learns that her ex-lover will be attending; Mélanie and her husband, Alain, who are on the brink of divorce; and Marie-Laurence’s estranged father, who makes a surprise appearance.