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Insidious: The Last Key Movie Poster

Trivia for Insidious: The Last Key

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Jump to: Spoilers (4)
  • Rumored to be about Elise's backstory, and that the movie might focus on her origin story.
  • Title for this film revealed in the trailer to be "Insidious 4: The Last Key"
  • The poster is similar to 1985 horror movie titled HOUSE.
  • Christian, Elise Rainier's brother, is played by Bruce Davison. In Insidious (2010) and Insidious: Chapter 2 (2013), Elise is close friend with Lorraine Lambert, played by Barbara Hershey. Davison and Hershey work together in Last Summer (1969).


  • It leads directly into "Insidious" as this film occurs before the iconic first film in the franchise.
  • Optimus Dressamus appears in the Further. He can be seen eating crinkle cut fries and watching The Sound of Music.
  • When Elise is searching for the hospital door to send back Melissa's body - she opens a door where we can see Dalton - The boy from Insidious chapter 1(2010) whose soul was caught up in the Attic.
  • This film concludes the Prequel aspect of the Insidious Franchise (meaning Chapters 3 and 4 occur before 1 and 2). This opens up the Franchise to reconnect with the plot line of Chapter 2 and follow Elise's journey into The Further along with her newly introduced family.
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