When Arlen awakens on a train one hot Florida night and sees death's telltale sign in the eyes of his fellow passengers, he tries to warn them. Only 19-year-old Paul Brickhill believes him, and the two abandon the train, hoping to escape certain death. They continue south, but soon are stranded at the Cypress House -- an isolated Gulf Coast boarding house run by the beautiful Rebecca Cady -- directly in the path of an approaching hurricane.