Insidious: The Last Key is an upcoming American supernatural horror film directed by Adam Robitel and written by Leigh Whannell. It is the fourth installment in the Insidious franchise, and the second in terms of the series' in-story chronology, following 2015's Insidious: Chapter 3. The film stars Lin Shaye, Angus Sampson, Leigh Whannell, Josh Stewart, and Caitlin Gerard.
