This is the 35th adaptation for film/TV of the Henry James novella The Turn of the Screw. A movie remake telling a modern version of the tale called The Turning (2020) was released in theaters a few months before this series premiered.
The telephone number in the nanny advert in episode 1 is a number you can dial. You will hear a voice recording from Miles and Flora.
In almost every scene from Dani's point of view there are ghosts in the background. Sometimes a full ghost, only a head, hands or a face.
Oliver Jackson-Cohen was originally going to play the gardener love interest of Dani, but Mike Flanagan thought the audience might find it a little strange because Oliver and Victoria played twins in The Haunting of Hill House (2018) . So he was cast as the dastardly but tragic Peter Quint instead.
The episode titles are named after the ghost stories of Henry James.