It's an easy argument that Paranormal Activity 3 was the best installment in Paramount Pictures' annual October franchise, so it should come as no surprise that directors Henry Joost and Ariel Schulman have been asked back for another round with the suburban ghost that scares us the most. All we know about this sequel is that it's set in 2011. If you want to find out more (i.e. "what really happened"), you can text "WantIt" to 21534 for an answer. Then check out the latest teaser for Paranormal Activity 4, which finds the past time of making fun distorted faces on your webcam turning into a lifetime of misery.