The Haunting of Bly Manor (Netflix)

A woman says she has a story — a ghost story. We see a doll turn its head within a pile of other dolls in the corner of a dark room. Spooky singing by children accompanies a series of images, including a dollhouse that opens on its own. Something creepy moves behind a little girl while she's playing, and she turns around and admonishes it with "Shhh!"