Benoît finds in his toy chest a list of things he had promised to do before his 30th birthday. Problem: he is 30 tomorrow! Between his stuck sister, his assumed best-drinking alcoholic best friend and a surprise guest, he will spend an explosive and drunk birthday party in the midst of his teenage secrets and memories. Just a point to finally grow? An uninhibited comedy, with murderous aftershocks and a fast-paced rhythm!
Yolande, the daughter of Commissioner Navarro, pleads her first case. The worthy daughter of the commissioner wins hands down. Her client is exonerated despite the relentlessness of Lieutenant Garrel. Happy with her accomplished duty, she leaves the Palace for the office of Master Rossi, her boss, where her colleagues reserve a small party for her.
En Julio, Lena y Odette planean abandonar Lyon para ir a pasar las vacaciones del 58 a la costa Atlántica, a Baule-les Pins, dónde han alquilado una casa cerca de la playa. Lena está sufriendo graves problemas matrimoniales, y mientras intenta arreglarse con su marido, sus hijas Frédérique y Sophie llegarán antes, acompañadas de su tía Odette, quien no tiene demasiada mano con los niños y no se siente cómodas con ellas.
Durante su estancia en la bella villa costera muchas cosas cambiarán en la vida de las dos niñas sin que ellas puedan hacer nada para evitarlo.