The Texas Chain Saw Massacre

Five friends take a road trip through rural Texas in a van, visiting the grave of Sally and Franklin Hardesty's grandfather. They pick up a hitchhiker who turns out to be a psycho, and after he attacks Franklin with a straight razor, the group forces him out of the van. The group then explores an abandoned house owned by the Hardesty family, where they discover a gruesome display of human remains and are stalked by a disturbed killer named Leatherface, who wears a mask made of human skin and wields a chainsaw.