Penny, a young woman traumatized by a childhood auto accident that killed her parents, accompanies her therapist on a road trip back to the scene of the accident as part of her therapy to overcome her fear of cars.
But, when the two women accidentally cross paths with a dark and mysterious Hitch Hiker on a lonely stretch of mountain highway an attempt at healing suddenly takes a terrifying detour into a horrorific life-and-death struggle with a ruthless, deranged killer bent on preying upon Penny's worst fears.