I Piss on Your Corpse.

Turmoil in the Cuckoo's Nest: The killer Brutus has left his cabin in the woods to free his held sister - a child of the forest. His path to the psychiatric ward is paved with corpses. Disturbing news for an auto mechanic also imprisoned there. After escaping the heel of her sadistic grandmother, she was enslaved by a sleazy millionaire - with bloody consequences. Now she and her lover are at the mercy of the pseudo-educational methods of the asylum staff. Could the blood trail of the murderous Brutus mean a path to freedom?