Horror is cinema's great equalizer. No one is safe. Whether a parable for troubled times or a scream-filled escape, film's masters of scare bring us tales that frighten us silly, explore the unspeakable and remind us that, unlike the unlucky souls onscreen, we are the ones still left alive. Though the form is often maligned, horror has never been more robust in ideas -- and popularity. With horror's highest-grossing film still in theaters, we take a look at the monsters we love to fear. For American horror stories are not only having a moment, they might, in fact, turn out to be the signature genre of the present moment.