In the 1970s, a charismatic con artist named François finds himself trapped in an endless cycle of mischief and deceit. With a natural talent for bringing smiles to people's faces, he decides to live outside the law, challenging authorities and outsmarting those who try to catch him. François is a master at the art of manipulation, but his life takes a turn when he is sentenced to treatment at a reform school. There, amidst a colorful group of eccentric characters, he begins to question his lifestyle.
As he tries to adapt to the strict rules of the facility, an unexpected bond forms with one of the psychologists treating him. She, in turn, is an idealist who believes in rehabilitation and the potential for change in people. This clash of personalities triggers comedic and reflective situations that challenge the beliefs of both. François, who has always toyed with the idea of being a rebel with a cause, is forced to face his own reality and reconsider his worldview.
Through moments filled with humor and tenderness, the story takes us on a journey of self-discovery. François learns that not everything in life can be resolved with a joke and that sometimes the real challenge is being honest with oneself. Will he be able to change his life, or will he remain the eternal incorrigible he has always been?