A girl has been asked, on pain of death, to tell a story that would entertain the Caliph. She decides to tell the longest story in the world, which will prolong her life. Each night she tells her story in the Caliph's bed chamber, with the Caliph, his guards, and his vizier as audience. Her story starts with an old man. The girl ends her story here. The Caliph is eager for more, and she promises to continue the story tomorrow.