The Insidious movie franchise was co-created by Leigh Whannell and James Wan, who wrote and directed the first two films, respectively.
Insidious and Insidious: Chapter 2 together form a two-part narrative about the Lambert family and the demonic entity that had plagued father Josh Lambert (Patrick Wilson) ever since he was a child.
Insidious: Chapter 4 opens in U.S. theaters on October 20th, 2017.
However, now that said found-footage horror movie series has finished its run, Blumhouse will be using Ouija 2 and the fourth Insidious movie to fill that “hole” left behind by the Paranormal Activity franchise in October in 2016 and 2017, respectively.