Roger Corman's sci-fi favorite tells of a group of scientists studying the effects of atomic radiation on a Pacific island. They're soon faced with a pair of deadly dilemmas: The first is the realization that the island is shrinking, and the second is the appearance of monstrous crustaceans with the ability to communicate using the voices of their human victims. Richard Garland, Pamela Duncan, Mel Welles, Russell Johnson, and Ed Nelson star. 63 min. Standard; Soundtrack: English.