The 12 Best Horror Movies of the Last 10 Years

What makes it great: Speaking of unique monsters, It Follows crafts one of the most original creatures we've seen in decades. This film feeds off our fear of the unknown. We don't actually know what "it" looks like. We don't even know what form it might take next. All we know is that it follows you until it can kill you. It's thrilling and shocking all at once to watch the beast do its work.