Rosemary’s Baby is a 1968 American psychological horror film written and directed by Roman Polanski, based on Ira Levin‘s 1967 novel of the same name. The film stars Mia Farrow as a young (soon pregnant) wife living in Manhattan who comes to suspect that her elderly neighbors are members of a Sataniccult and are grooming her in order to use her baby for their rituals. The film’s supporting cast includes John Cassavetes, Ruth Gordon, Sidney Blackmer, Maurice Evans, Ralph Bellamy, Patsy Kelly, Angela Dorian, and, in his feature film debut, Charles Grodin.