The horror isn’t that Harry Angel might be Johnny Favorite, or that Johnny Favorite might have sold his soul, but that Harry Angel might not be who he thinks he is. He may not be a brave World War II veteran. He might in fact be a murderer. Everyone in this book has a double identity, leading to the chilling matter at the heart of all satanic possession fiction: if Satan can get inside us, then maybe we aren’t who we thought we were.