Adam Wingard’s The Guest isn’t necessarily a horror film. Strictly speaking, it’s more of a suspense thriller in the 1980s fashion. However, when one contemplates the themes of the film, a decidedly horrific element emerges. Dozens of movies, books, and televisions shows have explored the idea of allowing evil into your life. And, yes, some of the most frightening works of art are about evil being forced upon you. But there’s just something about the idea of welcoming it in that just sends shivers up our spines.