The real dream of the American pastor Martin Luther King was never limited to civil rights. He hoped for a just America, where poverty would no longer have a place. Social equality was for him the only guarantee of a true emancipation. During the last four years of his life, he mobilized all his energy to realize this "other dream". But there were many obstacles: he was scorned by white, racist America, abandoned by the political class, but also by some of his own people, who decided to turn their backs on the principle of non-violence.