This billionaire’s luxury doomsday bunker has everything: spectacular ocean views, a full-service kitchen, three bedrooms, a broadband connection, and concrete thick enough to keep any kind of horror out. Today, the bunker’s caretakers are about to discover those concrete walls are good—too good—at keeping them trapped with the horrors inside. Twenty feet below the world’s most beautiful beach, they’ll face the ultimate evil—one that transcends death itself.