WARNING! This article contains SPOILERS for Apartment 7A!Paramount+s horror movie Apartment 7A dives into the dark history of the Bramford before the twists and turns of Rosemarys Baby, but still briefly brings back Rosemary and Guy Woodhouse. Apartment 7A explores the story of Terry Gionoffrio, a minor character from 1968s Rosemarys Baby who was living with Guy and Rosemarys neighbors, Minnie and Roman Castevet. While Rosemary met Terry in the original movie during a memorable scene in the laundry room, her time in the 1968 film was cut tragically short when Rosemary and Guy discovered that Terry had fatally fallen from the window of the Castevets apartment.

https://screenrant.com/who-plays-rosemary-guy-woodhouse-apartment-7a-rosemarys-baby-prequel/