Just married, Eric and Mel are recording their honeymoon road trip. It begins with fun and games but ends in tragedy when they make the mistake of picking up a hitchhiker.
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.
One evening, Hammer gives a ride to Christina, an attractive hitchhiker on a lonely country road, who has escaped from the nearby lunatic asylum. Thugs waylay them and force his car to crash. When Hammer returns to semi-consciousness, he hears Christina being tortured until she dies. Hammer, both for vengeance and in hopes that "something big" is behind it all, decides to pursue the case.
A truck driver plays a cat-and-mouse game with a mysterious serial killer in a van who lures young female hitchhiker victims on a desolate Australian highway.