In 2092, humanity has conquered mortality through the endless renewal of Cell. The world watches in fascination as the 118-year-old Nemo Nobody, the last mortal on Earth, edges towards death. Curious to know of life before quasi-immortality, they interview Nemo. Dr. Feldheim, a psychiatrist, uses hypnosis to help Nemo recall some of his memories, while Nemo relates other memories to a journalist. As he is prodded, Nemo makes contradictory statements. He recounts his life at three primary points: at age 9, when his parents divorced, at age 15 when he fell in love, and at age 34 as an adult. All three unfold into their many possible outcomes.