Vietnam veteran, Jake Rivers, is a man on the run. A botched bank robbery has sent him south, towards the town of Hope Springs. Deputy Kelly Anderson is the woman who intercepts him, his escape plan now fooled. A mysterious sequence of events finds them trapped at a remote motel that is cut-off from the rest of the world. First comes the storm. Then the rain. Something is in the rain, something that turns animals into beasts, and men into monsters...