"Paranormal Activity" is a terrifying supernatural thriller featuring shocking footage of a demonic haunting. Katie and Micah were enjoying a happy, carefree life. Their future looked promising until bizarre events began occurring at night. Katie was no stranger to paranormal phenomena - she had been stalked by a malevolent entity since childhood, and she feared that it had followed her to their new home. They purchased a video camera to find out what was happening at night as they slept. Over the course of three weeks in September & October of 2006, they ran nightly surveillance and captured indelible proof on home video, which has been edited into the feature film "Paranormal Activity."