I Spit on Your Corpse

I Spit on Your Corpse, also known as Fatal Pursuit and Girls for Rent, is a 1974 American crime film directed by cult director Al Adamson. Originally released on October 13, 1974, the film has been distributed on DVD by Troma Entertainment.

The next morning, Donna drives off toward the USMexico border, unaware Sandra and Erica know her destination. Donna stops at a remote gas station to refuel and is approached by a young, female hitchhiker who urgently needs a ride. Donna declines, and while she is away from the car, the hitchhiker steals her car. Sandra and Erica pull into the gas station, and the attendant points them in the direction the hitchhiker left they drive off immediately, before he can tell them it had been stolen. Donna recognizes them, and now realizes she is being hunted.Another customer, a young man named Chuck, has witnessed the series of events and offers to give Donna a ride. Suspicious of his motives, she declines, instead accepting a ride from a seemingly more trustworthy old man named H. R. Stringham. However, Stringham abducts Donna, taking her back to his remote desert home, where he demands Donna have sex with his mentallyimpaired son, Ben. Donna reluctantly agrees, and the two go off to a secluded area. As she begins to disrobe, it is evident the childlike Ben does not understand what to do. She sneaks back to the house and steals his pickup truck. ........

Source: Wikipedia