As adults, best friends Julien and Sophie continue the odd game they started as children -- a fearless competition to outdo one another with daring and outrageous stunts. While they often act out to relieve one another's pain, their game might be a way to avoid the fact that they are truly meant for one another.

At the altar where he is marrying Séverine, the groom, Antoine, gets his first glimpse of her mother, Léa, and suffers what the French call a coup de foudre which we know as love at first sight.