A small town news team discovers a box of videotapes wherein a faceless figure, dressed in a dark suit, haunts and torments a family...slowly driving them insane. Soon after, they realize that the 'Operator' has begun to stalk them as well.

When their plans for a nature trip go awry, Polly and boyfriend Seth decide to check into a motel. On their way, they're carjacked and kidnapped by low-rent crooks Dennis and Lacey, who take the victims and their SUV to a nearby gas station. Along the way, they encounter an increasingly terrifying horde of parasites, and if any of them intend to survive, they'll have to outsmart the deadly organisms.