Maurice Pialat was an immense filmmaker and a man of rare standards, in his art as in his profession of living. A nonconformist, an outsider whose originality and passion have elevated to the rank of legend in just ten films. A look so singular that William Karel observed very closely for 20 years. From this perspective and this privileged relationship, his unpublished personal archives, and testimonies as close as possible to Pialat, the director tells us about the incredible journey of a genius of cinema and of a man at the same time so great. and so fragile.