In June 1979, the writer and civil rights activist James Baldwin embarked on a project to tell the story of America through the lives of three of his murdered friends: Medgar Evers, Malcolm X and Martin Luther King, Jr. He died before it could be completed. In his documentary film, I Am Not Your Negro, Raoul Peck imagines the book Baldwin never wrote, using his original words to create a radical, powerful and poetic work on race in the United States - then, and today.