The Mafu Cage
Directed by Karen ArthurR
1978 1h 42m[Thriller](/on-demand/category/thriller), [Horror](/on-demand/category/horror)5.938%5.9
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.
