In the twilight of life, a black ribbon emerges from a frame and coils itself inside the mind of one of the great French chroniclers of the internal. Across the world, a young girl stares at an image in a book: a woman, naked but for slippers, jewels, and the same ribbon which so captivates the writer. At opposite poles of experience, one follows the ribbon as it winds its way round longings, regrets, and contemplations; the other, at the beginning...