A lot of contemporary horror fiction uses a strange blend of Abrahamic (especially Christian) and Lovecraftian mythology. Angels are good, usually, but not necessarily nice; Devils are bad, usually, and still evil even when they are nice; Eldritch Abominations from Beyond either A) just want to destroy it all, B) twist everything into something wholly alien that squicks out both of the aforementioned parties, or C) operate on Blue-and-Orange Morality.