Existentialism goes pop in this benchmark of atomic-age science fiction, a superlative adaptation of a novel by the legendary Richard Matheson that has awed and unnerved generations of viewers with the question, What is humanity's place amid the infinity of the universe? Six months after being exposed to a mysterious radiation cloud, suburban everyman Scott Carey finds himself becoming smaller… and smaller… and smaller until he's left...

When Scott Carey encounters a mysterious radioactive mist on a boating trip, he soon finds his life taking on a bizarre and frightening twist. His physical size begins to diminish as he shrinks to a mere two inches. Suddenly, ordinary household situations loom over him with lethal intensity, a playful cat becomes a demon, and a spider is a gargantuan monster.