Seven years after a nuclear devastation wipes out Eastern North America, a billionaire entrepreneur transforms the 20th century Alcatraz penitentiary into the Alcatraz Pleasure Facility offering lavish entertainments; dining, gambling, imbibing and virtual reality excursions, some tame some overtly erotic. When a prominent salvage tycoon goes missing on the island a mystery ensues that involves even those who normally would have cared less. An investigation exposes an unlikely culprit with an unforeseen motive.