Rosemary's Baby (1968)

Rosemary and Guy Woodhouse move into the Bramford, an iconic New York City apartment building with a reputation for mysterious happenings. They meet their eccentric neighbors, Minnie and Roman Castevet, an elderly couple who take an immediate interest in the young couple. Despite the Bramford's dark history, Rosemary and Guy decide to make it their new home.

Rosemary befriends Terry, a young woman from the Bramford who later inexplicably commits suicide. As Rosemary tries to settle in, she starts experiencing strange occurrences and nightmares.

One night, she dreams of being raped by a demon in a surreal ritual surrounded by the Bramford residents. She wakes up to find scratches on her body.

Rosemary becomes pregnant and her neighbors, particularly Minnie, become overly involved in her pregnancy. They recommend Dr. Abraham Sapirstein, a well-regarded obstetrician. As Rosemary attends her doctor appointments, she starts experiencing strange symptoms and pain, but Dr. Sapirstein assures her that it is normal and prescribes a strange-smelling drink for her health.

Their friend Hutch calls and asks to see Rosemary the next morning in the city. She tells Guy when and where and sets off the next morning to meet her friend. When he is late, Rosemary calls to inquire about his whereabouts and finds out that he has taken ill very suddenly and can't meet her. As she is about to go home she bumps into Minnie "coincidentally" where she was supposed to meet Hutch. Hutch dies and one of his relatives or friends gives Rosemary the book that Hutch was going to give her at their meeting. The book is called "All of them are witches."

After reading some of the book, Rosemary connects the dots between her nightmares, the pain, and her neighbors, suspecting that they are part of a demonic cult. She shares her concerns with Guy, but he dismisses them as paranoia. Their relationship becomes strained as Guy starts spending more time with the Castavets and becomes increasingly ambitious in his acting career.

Rosemary conducts her own investigation, unraveling the truth behind her neighbors and their sinister intentions. She concludes that they want her baby for their occult rituals. As a result, Rosemary, in a panic, seeks out Dr. Hill. Dr. Hill hears her theory about the coven, acts like he believes her and tells her to rest in his office. Shortly after, Guy and Dr. Sapirstein surprisingly appear to take Rosemary home.

In her building's lobby, Rosemary drops her purse on purpose and as Guy and Dr. Sapirstein reach to pick up the contents she breaks away in an attempt to get into her apartment and lock them out. She gets in and calls a friend asking for an urgent call back but moments later Guy, Dr. Sapirstein and the building residents all appear in the hallway. They then grab her kicking and screaming, sedate her and realise she's in labor. Some time later Rosemary wakes up calmly without the baby and they then tell her she lost the baby. Then she hears a baby through the wall, which Guy says is just new neighbors that have an infant.

Rosemary eventually realises something is still wrong and believes her baby was stolen because they are saving her breast milk. Again, she is sedated when she accuses them of stealing her baby. Pretending to play along, Rosemary decides to find out once and for all. She goes into the closet joining the apartments (bringing a knife) and finds the coven assembled and a black baby crib in the room.

Rosemary approaches the crib to see her baby for the very first time. She gasps and her eyes widen in utter and complete horror, disgust and shock and backs away from the crib shouting, "What have you done to it?! What have you done to its eyes?!" The cultists start praising Satan and celebrate the arrival of the baby. Rosemary sinks into a chair crying in despair realizing that she has now become the mother of the AntiChrist and that everyone has betrayed her. When Guy tries to reassure her and tell her they are going to have a great life together she spits in his face. Turns out that Guy has willingly conspired with the coven in exchange for success in his acting career.

The movie ends with Rosemary going back to the crib and looking curiously at her new demon baby.