Sort by Popularity - Most Popular Movies and TV Shows tagged with keyword "sister-seduces-sister's-girlfriend"
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1. I Know What You Did Last Summer (2021)
TV-MA | 45 min | Drama, Horror, Mystery
In a town full of secrets, a group of teenagers are stalked by a mysterious killer a year after a fatal accident on their graduation night.
Stars: Madison Iseman, Brianne Tju, Bill Heck, Zeke Goodman
Votes: 9,103
2. The Mafu Cage (1978)
R | 102 min | Drama, Horror, Thriller
Ellen, a successful astronomer, cares for her mentally-ill sister, Cissy, who keeps a variety of primates in the home they inherited from their anthropologist father. When Ellen begins a romance, Cissy's jealousy proves deadly.
Director: Karen Arthur | Stars: Lee Grant, Carol Kane, Will Geer, James Olson
Votes: 714