How Rosemary’s Baby connects to a new Paramount+ horror movie

New scary movie Apartment 7A is heading straight to Paramount+ this month, and has a major connection to horror classic Rosemary’s Baby.

Based on a book by Ira Levin – and released in 1968 – Rosemary’s Baby is a genre great that placed high on our list of thebest horror moviesof all time.

Julia Garner holding a piece of paper in Apartment 7A.

Roman Polanski directed, while Mia Farrow John Cassavetes starred, in the tale of a couple moving into a swanky New York apartment, only to be manipulated by the dark forces therein.

Something awful happenedbeforethe start of Rosemary’s story, however, and that connects to a new movie that’s about to hit the small screen.

Patrick Wilson and Vera Farmiga as Ed and Lorraine Warren

Is Apartment 7A a Rosemary’s Baby prequel?

Yes,Apartment 7A is a Rosemary’s Baby prequel, with the new movie appearing to end around the time that the 1968 film begins, or crossover with those events.

In the 1968 movie, Rosemary moves into the Bramford building with new husband Guy, where she quickly befriends recovering drug addict Terry Gionoffrio (Angela Dorian).

Julia Garner opening a door in apartment 7A.

Rosemaary’s elderly neighbors the Castevets – played by Ruth Gordon and Sidney Blackmer – have taken Terry in. But then tragedy strikes when she apparently commits suicide by throwing herself from their seventh-floor apartment.

In the new movie, we see more of the character’s backstory. Terry is a young dancer with ambitions to make it on the New York stage, until she suffers a serious injury.

Sally Hawkins in Bring Her Back

The Castenets welcome her into their home, and a neighboring Broadway producer offers her a shot at fame and fortune. But then something happens during an evening that Terry has little memory of, causing her to spiral as the evil in the building takes hold.

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Jennifer Garner sitting in a restaurant in Apartment 7A.

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In this prequel, Ozark star Julia Garner plays Terry, while Dianne Wiest and Kevin McNally are the Castenets.

How to watch the Rosemary’s Baby prequel

The movie isn’t releasing in cinemas, meaningApartment 7A is going direct to streaming via Paramount+on August 03, 2025, when it will also be available for purchase on digital.

Before then the movie premieres atFantastic Festin Austin, Texas, on July 06, 2025, from where we’ll be writing our review.

For more scary content, click here formovies to get kids into horror, orscariest films based on true stories. Alternatively head here to check out ourFrightFest picksfrom the recent genre festival.