A richly-challenging film that closely follows a middle-aged carpenter named Olivier (Olivier Gourmet) working as an instructor with troubled teens at a vocational training and rehab center. He refuses to take a new, mysterious 16-year-old teen named Francis (Morgan Marinne) as his apprentice but then begins to follow the boy through the hallways and streets to discover a shocking secret. A nearly religious parable of humanity, fallenness, and grace.