In August, 1939, a worker goes into labor while working in a slaughterhouse and dies after a complicated labor, though the deformed child survives. The possibly orphaned baby is dumped in a garbage container and found by a beggar later, who brings him home. Along the years, the mentally retarded and disturbed boy called Thomas is raised by the Hewitt family in spite of having psychological problems as well as suffering from an unnamed skin disorder, later working in a meat packing plant. In July, 1969, when the facility is closed, the inhabitants move to other places, but the deformed, mentally childlike Thomas flies into a rage after being insulted and kills the foreman. His deranged brother (considered his uncle due to their age difference) executes the sheriff that is going to arrest Thomas, and assumes his identity, wearing his clothes,driving his car though the roads in Texas and entitling himself as Sheriff Hoyt...

En route to visit their grandfather s grave (which has apparently been ritualistically desecrated), five teenagers drive past a slaughterhouse, pick up (and quickly drop) a sinister hitch-hiker, eat some delicious home-cured meat at a roadside gas station, before ending up at the old family home... where they re plunged into a never-ending nightmare as they meet a family of cannibals who more than make up in power tools what they lack in social skills...

Driving through the backwoods of Texas, five youths pick up a traumatized hitchhiker, who shoots herself in their van. Shaken by the suicide, the group seeks help from the locals, but their situation becomes even more surreal when they knock on the door of a remote homestead. It s quickly apparent the residents are a family of inbred psychopaths, and the unlucky youths suddenly find themselves running for their lives. In hot pursuit is a disfigured, chainsaw-wielding cannibal known as Leatherface.