JP, a failed actor in his forties, comes up with the idea of organizing a large march for Black men in Paris to protest against the underrepresentation of Black people in society and media. To support this project, he tries to meet influential figures from the Black community, including comedians Fary and Éric Judor, rappers Soprano and Joey Starr. He quickly finds out that many Black people, even if initially agreeing with his idea, have very different conceptions of their Black identity, influenced by their personal experiences and African, Caribbean, or mixed race origins. It becomes challenging to define who is 'Black' and 'Black enough' to participate in the march. Afrofeminists ask him to include Black women in the march, and Beurs (people of North African descent) and Jews express interest in joining. He also commits several blunders that cost him some supporters. Simultaneously, he continues auditioning, hoping to boost his acting career but keeps getting offered highly stereotypical roles. Eventually, Fary offers him the lead role in a film he plans to produce. In the end, the march only attracts a small number of participants, but it brings JP closer to his father.