AKA: The Omen-Corcist
That The X-Files occasionally cribs ideas from pre-existing media is, in my mind, a given, although my indulgence for it varies from episode to episode. We established, as far back as Ice that the series is not above pulling whole plot outlines from other movies, and I guess I'm conceptually okay with that. Creating a new story every week is hard, and if you can borrow from another story to create the bones to build yours on, well that's no crime. You do have to build an interesting story on top of those bones, which is what trips some episodes up.