Mary Vincent's Heroic Survival

15 year old Mary Vincent stuck out her thumb to catch a ride to LA on September 29th, 1978. She was picked up by an older man who seemed friendly enough, although she found it slightly odd that he refused to take along the other people hitchhiking alongside her. She woke up on the ride to LA to find that they're were now heading the wrong direction. The events that happened next are some of the most horrific, brutal and unfathomable situations one could imagine...