1973/23: Sssssss 1973

 Trailer:

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https://m.ok.ru/video/4128162843342 

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

https://www.moriareviews.com/horror/ssssssss-1973.htm 

https://eofftvreview.wordpress.com/2020/07/18/sssssss-1973/ 

http://www.1000misspenthours.com/reviews/reviewsn-z/sssssss.htm