Considering how slapped-together and shoddy some horror movies seem, it’s always a bit remarkable to encounter one that takes itself seriously and aspires to more than just a few cheap scares. That doesn’t make them good, though. Deliver Us From Evil is the latest fright film from director Scott Derrickson, who came onto the scene nine years ago with The Exorcism of Emily Rose, and most recently delivered the underrated Sinister. (In between, he directed the god-awful remake of The Day the Earth Stood Still with Keanu Reeves.) His new film displays a degree of thoughtfulness and almost operatic grandeur that’s occasionally arresting — plus, it looks fantastic. But what does it matter when it’s constructed from such generic raw materials?