Mark and his wife Candy are returning to Las Vegas from vacation in San Diego when their car breaks down. Stranded and thirsty, they assume a shop owner will help them. But the shop owner is not who he appears to be and they soon find themselves on a downward spiral as their nightmare blossoms into terrifying reality. Forced to do things they would have never considered doing, Candy first, and then Mark, discover a side of themselves long repressed...