I am about to discuss an extremely creepy topic during a thunderstorm, in a dark room. (Why is the room dark? Oh, wouldn’t you like to know, Theoretical Reader, wouldn’t you like to know!) This week I am blending two different stories that share a conflict: possession. No, not that possession; I’m referring to the one that involves either extreme psychological phenomena or non-corporal-but-sentient-beings, depending on whether or not the characters believe in ghosts, demons, and/or spirits. In Penny Dreadful and The Exorcist*, characters become actors in deadly conflicts that turn their bodies and minds into war zones.