On one last road trip before they're sent to serve in Vietnam, two brothers and their girlfriends get into an accident that calls their local sheriff to the scene. Thus begins a terrifying experience where the teens are taken to a secluded house of horrors, where a young, would-be killer is being nurtured.

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...