The film involves the fate of 11 people selected by the US government to participate in a below-ground experiment to determine how they will fare when they are told that the rest of the human race has been destroyed by a nuclear holocaust. This strange cross-section of humanity includes
a hard-drinking businessman, Cooper; a member of Congress, Muldaur; a novelist, Cord; a black athlete, Kilpatrick; and the crazed government official who thought the whole thing up, Dillman. This might have been a good enough premise on its own (it isn't, however); but to spice things up, an
electrical vent is accidentally left open, allowing thousands of vampire bats to get into th...