April 15, 1874, boulevard des Capucines, Paris: a group of young feverish painters shunned by the official Salon and mocked by the classical masters, chose to come together to exhibit their paintings freely, in the studio of photographer Nadar. At the end of a teeming century, when modernity was emerging, this group of rebellious artists, revolutionized the world of art. Among them Monet, Renoir, Cézanne, Morisot, Degas, Sisley and Pissarro. To celebrate the birth of Impressionism 150years ago the Musée d’Orsay will host the largest retrospective ever in March 2024. Based on unpublished research, and unique 3D recreation this documentary looks back at this key moment in the history of art.