An ape, turned near human by Dr. Coriolis and given the name 'Balaoo', is smitten by the beauty of Coriolis' niece, Madeleine. Being inquisitive, though, he runs off, getting into mischief, and falls in with a poacher who saves his life. Acting now as his slave Balaoo kills a man for the poacher, but balks on his orders to kidnap Madeleine, deciding instead to set a trap for the poacher.
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