Vince Vaughn knocks out his look-alike with a fire extinguisher

When a mild-mannered businessman learns his identity has been stolen, he hits the road in an attempt to foil the thief -- a trip that puts him in the path of a deceptively harmless-looking woman.

Complete strangers stranded at a remote desert motel during a raging storm soon find themselves the target of a deranged murderer. As their numbers thin out, the travelers begin to turn on each other, as each tries to figure out who the killer is.