Who has not had the frightening experience of stumbling around in the pitch black? As a child, Alain Badiou went through it when he, along with friends, made up a game called “On 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 the universe 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.