The master of horror himself, Stephen King, has given a thumbs up to one of Mike Flanagan's horror shows. Midnight Mass is the third TV series created by Mike Flanagan, who has quietly become one of the icons of modern horror. While most casual fans will know Flanagan as the brain behind Netflix series like The Haunting of Hill House, The Haunting of Bly Manor, and The Midnight Club, he's also been working for years as a horror filmmaker, with acclaimed movies under his belt, like Hush, Ouija: Origin of Evil, and Doctor Sleep.