Scream Bloody Murder (1973)

Storyline:

Scream Bloody Murder 1973 A disturbed boy kills his father with his farm tractor and his arm is mangled in the process Hes taken to a mental hospital where hes outfitted with a hook to replace his lost hand and, years later, hes eventually released from the asylum He returns home to find his mother has remarried, which sets him off on a murderous rampage