Here are some new INSIDIOUS: CHAPTER 3 set photos. The newest chapter in the terrifying horror series is written and directed by franchise co-creator Leigh Whannell. This chilling prequel, set before the haunting of the Lambert family, reveals how gifted psychic Elise Rainier ( Lin Shaye ) reluctantly agrees to use her ability to contact the dead in order to help a teenage girl ( Stefanie Scott ) who has been targeted by a dangerous supernatural entity. See all the photos after the Jump... Written and Directed by Leigh Whannell Starring Dermot Mulroney, Stefanie Scott, Lin Shaye, Angus Sampson, Leigh Whannell IN THEATERS MAY 29, 2015 The newest chapter in the terrifying horror series is written and directed by franchise co-creator Leigh Whannell. This chilling prequel, set before the haunting of the Lambert family, reveals how gifted psychic Elise Rainier (Lin Shaye) reluctantly agrees to use her ability to contact the dead in order to help a teenage girl (Stefa