In The Man Who Japed, a world that has survived a nuclear holocaust has given way to a rigid system of oppressive morality. Highly mobile and miniature robots monitor the behavior of every citizen, and the slightest transgression can spell personal doom. Allen Purcell is one of the few people who has the capacity to literally change the way of the world, and once he's offered a high-profile job that acts as guardian of public ethics, he sets out to do precisely that, but first he has to deal with the head in his closet.