At 35, Maxime Maréchal, a brilliant doctor, lives an orderly existence between his lawyer wife, admiring friends and satisfied family. It's such a soft and easy environment that he has more or less lost himself in the folds of this comfortable pillow. Until the day he meets Chine, a singer who gives him the electric shock that his nearest and dearest have been dreading. Max decides to give up his career to form a rock band, thus going back to the dream that he had as a teenager. Max then leads his whole entourage on a frantic chase and, through his decision, turns everyone's life upside down.