Rosemary’s Baby ends with a chilling revelation that turns the entire story into a nightmare of betrayal and the supernatural. After months of strange events, pregnancy worries, and meddling neighbors, Rosemary Woodhouse wakes up from a drugged sleep to find her husband Guy and the elderly Castevet couple hovering over her bassinet. They reveal the truth: her baby is not just any child, but the son of Satan himself, born through a satanic ritual orchestrated by a coven living right next door in their New York apartment building.
The film builds to this moment slowly. Rosemary suspects something is wrong from the start. She moves into the Bramford building with Guy, where odd things happen, like the death of their neighbor Terry Gionoffrio, who jumps from a window after hinting at a scary secret. For more on Terry’s fate, check out details from the prequel Apartment 7A, which ties directly into the original story.https://www.imdb.com/news/ni64851879/ The neighbors give Rosemary a vitamin drink that makes her sick, and Guy pressures her to take pills from Dr. Sapirstein, dismissing her fears as hysteria.
As her pregnancy drags on painfully, Rosemary loses weight and feels her baby kick in unnatural ways. She reaches out to a friend for help, but that friend dies mysteriously. In the final scenes, after giving birth off-screen, Rosemary hears her baby’s cries but is kept away. When she finally confronts everyone, they admit the plot. The baby, named Adrian by the cult but called Andy by Guy, has glowing eyes like the devil. Rosemary’s initial horror shifts as she peers into the bassinet and sees the innocent face. The coven urges her to accept her role as mother to the Antichrist. Instead of screaming or fighting, she rocks the bassinet gently, whispering, “He’s got his father’s eyes.” This ambiguous close hints she might join them, trapped by maternal instinct or defeat.
Director Roman Polanski makes the ending scary by showing everyday people pulled into evil. The neighbors, once quirky, reveal yellow inverted crosses on their necks—marks of devil worship. Mia Farrow’s wide-eyed performance as Rosemary sells the slow dread, earning praise for matching the character perfectly.https://en.wikipedia.org/wiki/Mia_Farrow The twist flips the happy new parent trope into pure terror, proving one of cinema’s scariest conclusions.https://www.watchmojo.com/articles/top-50-scariest-movie-endings
Guy’s betrayal stings deepest. He traded his wife’s body and their marriage for fame, promised by the cult. The movie leaves you wondering if Rosemary fully gives in or just plays along to protect her child. Either way, the power of suggestion wins—no gore, just psychological gut punch.
Sources
https://www.watchmojo.com/articles/top-50-scariest-movie-endings
https://www.imdb.com/news/ni64851879/
https://en.wikipedia.org/wiki/Mia_Farrow
https://www.pastemagazine.com/movies/the-haunting-of-sharon-tate/the-haunting-of-sharon-tate-exploits-real-tragedy

