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.



Cissy: “You used to be so beautiful, You still are sometimes–when you are naked with me.“

Cissy: “I just love making you feel so good. Your skin feels so smooth. It’s like velvet. Just let all the muscles relax. It’s like I’m touching you and myself at the same time. Like we’re the same person. Is that what love is?”