Antoine and Laurent, old friend, pass their holiday in Corse with their several daughter: seventeen-year-old Louna and eighteen-year-old Marie. One eve at the beach, Louna seduce Laurent. Louna is in love, but for Laurent it was nil more than than a fleeting distraction. Without uncover her lover’s name, Louna confide in her male parent, who try by any agency to detect who his girl’s lover is. How long will the secret be able to be keep hidden?