Paranormal Activity is a 2007 American supernatural horror film produced, written, directed, photographed and edited by Oren Peli. It centers on a young couple (Katie Featherston and Micah Sloat) who are haunted by a supernatural presence in their home. They then set up a camera to document what is haunting them. The film utilizes found-footage conventions that were mirrored in the later films of the series.

Plot

Young couple Katie and Micah move to a new house in San Diego. Katie claims an evil presence has been haunting her since she was a child, so Micah sets up a camera in their bedroom to record any paranormal activity that occurs while they sleep. Katie visits psychic Dr. Fredrichs, who suggests Katie is being haunted by a demon that feeds off of negative energy and is intent on tormenting her. He advises not to communicate with the demon without a demonologist, but Micah continues to film and seek it out.