On an ordinary day in a strangely unfamiliar London, Kleinzeit is fired from his advertising job and told he must go to hospital with a skewed hypotenuse. There on Ward A4, he falls in love with the divine, rosy-cheeked Sister and is sent spinning into a quest involving, among other things, a glockenspiel, sheets of yellow paper, Orpheus, the Underground and that dirty chimpanzee, Death.