On a stormy night, young Jim, who transports a luxury car from Chicago to California to deliver it to its owner, feeling tired and sleepy, picks up a mysterious hitchhiker, who has appeared out of nowhere, thinking that a good conversation will help him not to fall asleep. He will have enough time to deeply regret such an unmeditated decision.

While driving through the New Mexico Desert during a rainy night, college students Jim Halsey and his girlfriend Grace Andrews give a ride to a hitchhiker. While in their car, the stranger proves to be a psychopath threatening the young couple with a knife, but Jim successfully throws him out of the car. This sets off a chain of events that will change all of their lives forever.