"What you have just looked at takes place three hundred feet underground, beneath the basement of a New York City skyscraper. It's owned and lived in by one Paul Radin. Mr. Radin is rich, eccentric and single-minded. How rich we can already perceive; how eccentric and single-minded we shall see in a moment, because all of you have just entered the Twilight Zone."
Paul Radin has invited three people to view his bomb shelter: Mrs. Langford, a teacher who flunked him; Colonel Hawthorne, who court-martialed him; and Reverend Hughes, who made public a scandal involving a girl who commited suicide over him. Using fake sound and news reports, he convinces them that nuclear war is minutes away. He offers them a deal: If they apologize to him, they may remain in the shelter. They all three refuse and leave. Suddenly, Paul hears a tremendous explosion, and returns to the surface to find everything destroyed - nuclear war did happen. In reality, everything is fine; Paul has lost his mind."Mr. Paul Radin, a dealer in fantasy, who sits in the rubble of his own making and imagines that he's the last man on Earth, doomed to a perdition of unutterable loneliness because a practical joke has turned into a nightmare. Mr. Paul Radin, pallbearer at a funeral that he manufactured himself... in the Twilight Zone."