There’s a lot to unpack in the first trailer for Doctor Sleep, starting with what it actually is. The forthcoming film, slated for a Halloween premiere, is an adaptation of the 2013 horror novel by Stephen King — but this isn’t just any Stephen King horror novel.

Doctor Sleep is a sequel to The Shining. The film stars Ewan McGregor as Danny Torrance, Jack Torrance’s trike-riding, “Redrum”-intoning son. Now he’s grown up and being haunted by demons from his past,