Remember Netflix’s 2018’s Halloween hit, “The Haunting of Hill House.” Well, series creator and nu-horror maestro Mike Flanagan is back with its follow-up, “The Haunting of Bly Manor.” Flanagan made his name with smaller, well-received horror films like “Hush,” and then after a string of hits, “Ouija: Origin of Evil” (all 2016), “Gerald’s Game” (2017), found his way into following up Stanley Kubrick‘s “The Shining” with “Doctor Sleep” last year.