The third film in the franchise is Insidious: Chapter 3, but this horror film is also a prequel. The story takes place before the haunting of the Lambert family. It reveals how gifted psychic Elise Rainier agrees to use her ability to contact the dead in order to help teenage girl Quinn Brenner. Quinn asks Elise for help when she thinks she has been target by a dangerous supernatural entity.
- Cast: Stefanie Scott, Lin Shaye, Dermot Mulroney
- Director: Leigh Whannell
- Writing credits: Leigh Whannell
- Genre: Drama, horror, thriller
- Runtime: 97 minutes