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. A famous psychic Dr. Fredrichs, who reveals that Katie is being haunted by a demon that feeds off the negative energy and is intent on tormenting Katie, advises them not to communicate with the demon and to contact Demonology Dr. Johann Averies if needed. Katie seems interested, but Micah does not take this seriously.
Just as Daniel and Kristi welcome a newborn baby into their home, a demonic presence begins terrorizing them, tearing apart their perfect world and turning it into an inescapable nightmare.
In 2005, Katie delivers a box of old VHS to her pregnant sister Kristi and her husband Daniel, which holds footage of young Katie and Kristi with their mother, Julie, and her boyfriend Dennis. A year later, Paranormal Activity 2 and the tapes are missing.
On Paranormal Activity 2, Kristi Rey and her husband Daniel are killed by her demon-possessed sister Katie, who then abducts Kristi's one-year-old son, Hunter. Text states that Katie and Hunter's whereabouts remained unknown.
Using a special camera that can see spirits, a family must protect their daughter from an evil entity with a sinister plan.
In June 2012, 18 year old high school graduate Jesse Arista lives with his father, sister and grandmother in Oxnard, California. He begins to enjoy the summer with his best friend, Hector. In the apartment below lives a mysterious woman named Ana, who everyone believes to be a Brujería. When Ana is found murdered, Jesse and Hector spot classmate Oscar running from the scene, suggesting he was responsible. The two investigate the apartment, where they find black magic items, as well as VHS tapes and a journal of spells that can "open doorways to unholy lands."
