Wrong Way(1972)

LURED...! ABUSED...! ABANDONED...!

Two girls are driving home when their car breaks down in the country. They are kidnapped by a gang of drug-crazed hippies, and repeatedly raped. They escape, but soon run into a death cult who plan to gang-rape the girls, then kill them. Meanwhile, the father of one of the girls gets the police to begin an investigation into their disappearance.