1971/53: The Nightcomers 1971

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https://dai.ly/x8y2lqk 

 https://en.wikipedia.org/wiki/The_Nightcomers

https://www.moriareviews.com/horror/nightcomers-1971.htm 

https://themagnificent60s.com/2025/04/29/the-nightcomers-1971/ 

https://dailygrindhouse.com/thewire/nightcomers-intriguing-exploitative-prequel-turn-of-the-screw/