Who hasn't had the frightening experience of stumbling around in the pitch dark? Alain Badiou experienced that primitive terror when he, with his young friends, made up a game called "The Stroke of Midnight." The furtive discovery of the dark continent of sex in banned magazines, the beauty of black ink on paper, but also the mysteries of space and the grief of mourning: these are some of the things we encounter as the philosopher takes us on a trip through the private theater of his mind, at the whim of his memories. Music, painting, politics, sex, and metaphysics: all contribute to making black more luminous than it has ever been.