Born in Egypt, founder of the communist movement in the 1940s, expelled from this country in 1950, Henri Curiel settled in Paris where he directed the aid networks of the Algerian National Liberation Front (FLN), the "suitcase carriers ". Arrested, he will be released after the signing of the Evian agreements. He founded the Solidarity movement, for the benefit of Third World liberation movements and at the same time engaged in the promotion of Israeli-Arab and Israeli-Palestinian peace. He was assassinated in Paris on May 4, 1978. The investigation was unsuccessful. Gilles Perrault wrote a book about his journey, Un homme à part (Fayard, Paris, 2006). The Canal+ documentary explores an avenue little considered until now, that of the direct responsibility of the French authorities in the assassination of Curiel.