Two brothers, on either side of the law, face off over organized crime in Brooklyn during the 1970s.

The result of the small handkerchiefs "Petits mouchoirs", 7 years later. The band, which erupted, is found on the occasion of the anniversary surprise organized for Max.

Guillaume Canet is told by a young co-star that he's no longer Rock'n' Roll and can't sell films anymore. He then tries to prove her wrong and gets help from his girlfriend, Marion Cotillard.