A feature-length documentary about François Cavanna—creator of the publications Charlie Hebdo and Hara-Kiri—who passed away on January 29, 2014. His influence on several generations of writers, journalists, and comedians is far too little known. While older audiences are aware that he co-founded Hara-Kiri and Charlie Hebdo with Choron, the dozens of books and collections he wrote or contributed to remain largely unfamiliar. People chiefly remember his early autobiographical works—such as *Les Ritals*, *Les Russkoffs*, and *Bête et méchant*—while overlooking his historical novels, encyclopedias, and polemical writings like *Stop crève…* The film draws on interviews with Cavanna conducted shortly before his death, forgotten archival footage, and previously unheard testimonies from figures such as Siné, Willem, Delfeil de Ton, and Sylvie Caster.