Rosemary's Baby (1968)

In director Roman Polanski's effective horror film - adapted from Ira Levin's 1967 novel, with events occurring from 1965-1966, it was a frightening story about the slow domination of a new young, pregnant bride sold out in a Faustian deal to a diabolical forces (including a coven) - ultimately to give birth to the Devil's child - by her social-striving, aspiring actor-husband; the very convincing, creepy, psychological, Satanist horror/thriller effectively made the point that evil surrounds us in the alienated, every-day, mundane city environment:

• the opening title credits were presented atop sweeping views of the Manhattan skyline, accompanied by a female voice [uncredited Mia Farrow] monotonously singing a sad lullaby tune with the words: "la-la-la-la-..."
• a pair of newlyweds moved into a large, rambling, gothic NYC apartment building in Central Park West (the Bramford): Guy Woodhouse (John Cassavetes), an unemployed, struggling actor, and his frail waifish wife Rosemary (22 year old Mia Farrow) with a fertile imagination
• during a dinner scene, their friend Edward "Hutch" Hutchins (Maurice Evans) explained some of the morbid and infamous history of their apartment building: "The Black Bramford" -- "Adrian Marcato practiced witchcraft. He made quite a splash in the 90s by announcing that he'd conjured up the living devil. Apparently, people believed him so they attacked and nearly killed him in the lobby of the Bramford..."
• they met their overly-solicitous and intrusive elderly couple next-door neighbors: Roman (Sidney Blackmer) and creepy, nosy Minnie Castevet (Oscar-winning Ruth Gordon); Rosemary became "dizzy," woozy and disoriented after eating some tainted chocolate mousse (laced with sleeping powder) offered by Minnie
• at the start of Rosemary's nightmare (reflecting her constant torment and guilt regarding her lapsed Catholicism), she hallucinated a Black Mass, imagined herself on a mattress drifting on the ocean, and then as a passenger on a presidential yacht (captained by "Hutch") and enjoying cocktail hour; then undressed, shivering and naked, she was abruptly wearing a bathing suit, while various images assaulted her: the Birth of Man paintings on the Sistine Chapel ceiling, a typhoon at sea; she nakedly descended into the hold of the yacht, where a fire burned and she reclined back onto a mattress

Rosemary's Rape by the Beast: "This is no dream, this is really happening."

• during her hallucinatory recollections while lying on the mattress, she was surrounded by many chanting, overweight, elderly naked figures (of the Satanists' coven), including Guy and the Castevets; a bloody-red liquid was painted with rune designs on Rosemary's bare chest; a person resembling Mrs. John F. Kennedy (Patricia Ann Conway) who wore a white diaphanous gown descended a staircase and suggested tying her legs down in case of convulsions; attendants spread Rosemary's legs apart and bound them
• during her nightmarish dream-like sleep, Guy began making love to her, but then his appearance changed into a grotesque Beast-like figure resembling the Devil, with yellowish eyes and clawed, scaly hands; he stroked the length of her body with his hairy claw; she realized she was being 'raped' during a horrific ritualistic copulation scene, as everyone watched her having intercourse with the Beast, and she thought to herself: "This is no dream, this is really happening."
• the next morning, Rosemary questioned mysterious scratches she found on the side of her body; she was appalled that Guy admitted making love to her while she was passed out - supposedly from mixing alcohol - "It was kind of fun in a necrophile sort of way." She remembered something quite different from Guy's recollection - a demonic, inhuman rape
• after Hutch's shocking death, Rosemary showed Guy a book titled All of Them Witches, revealing that their neighbor Roman Castevet (aka Steven Marcato) was the son of a famous martyred witch (warlock) Adrian Marcato, but Guy downplayed her fears; the paranoid, haunted, and hysterical Rosemary began to exhibit signs of experiencing a nervous breakdown and a belief in conspiracy theories; she thought she had been impregnated not by her husband but by Satan, so that her baby could be used in the New Yorkers' evil cult rituals, with coven members including Roman and Minnie; coincidentally, Guy's acting career suddenly turned promising
• Rosemary made the stunned discovery, with reassembled SCRABBLE pieces, that the name STEVEN MARCATO was an "anagram" for ROMAN CASTEVET
• Rosemary made a frantic phone call to her original doctor Dr. Hill, to alert him to her fears about her obstetrician Dr. Abe Sapirstein (Ralph Bellamy), and to schedule an appointment, when an ominous character resembling the back of Dr. Sapirstein momentarily stood behind her outside the phone booth
• in her apartment, Rosemary was told that her child was born dead by Dr. Sapirstein, who secretly was a member of the witch's coven: "It was in the wrong position. In a hospital, I might have been able to do something about it, but you wouldn't listen"; she was disbelieving and thought her baby had been kidnapped: "You're lying. It didn't die. You took it. You're lying. You witches. You're lying!"
• in the concluding sequence of the supernatural horror fest, Rosemary snuck into the Castevets' apartment through the closet passageway - with a kitchen knife upraised in her hand - where she discovered a coven of witches (including Guy), surrounding a black-draped baby cradle-bassinet to pay their respects to her Satanic child - the devil's flesh-and-blood baby
• at her first viewing, she screamed with complete distraught: "What have you done to it? What have you done to its eyes?" amidst the neighboring Satanic cult; Roman Castevet answered: "He has his father's eyes!"; uncomprehending, she gave out a wild scream: "What are you talking about?! Guy's eyes are normal! What have you done to him? You maniacs!"; Castevet went further: "Satan is his father, not Guy. He came up from hell and begat a son of mortal woman. (Coven members cheered 'Hail, Satan!') Satan is his father and his name is Adrian"

"You maniacs!"

Roman Castevet (Sidney Blackmer)

Minnie Castevet (Ruth Gordon)

• but then gradually, Rosemary responded with nurturing and maternal comfort toward the black-draped baby crib and her baby Adrian (Satan's son or the Anti-Christ?), by rocking it to sleep

Maternal-Nurturing Response to Satanic child