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Monsters Crash the Pajama Party
Not 3-D but real flesh and blood monsters!
1965 · 31m · 4.2 on TMDB
A group of teenage girls spends the night in an old dark mansion as an initiation into a college sorority. What they don't know is that the building is actually the headquarters for a mad scientist and his hunchbacked assistant, who are experimenting with turning humans into gorillas.
