Trilogy of Terror (1975) on Netflix

Three horror anthology stories of tormented women. In the first story, Julie Eldridge is a sexually-repressed college teacher who is blackmailed by one of her students for a past indiscretion in which she played an unwilling part. But the student is unaware that Julie plots to turn the tables on him the first chance she gets. In the second story, Millicent Larimore is a plain-looking, almost reclusive woman who lives with her amoral twin sister Therese whom delights in tormenting her. However, only their doctor who visits from time to time knows the real thing behind the scene. In the final story, Amelia in a solo horror story monologue is a mother-dominated woman who buys an African Zuni fetish doll for her latest boyfriend in which the doll comes to life and terrorizes her in her own apartment.