Insidious: The Last Key

Insidious: The Last Key is a 2018 American supernatural horror film directed by Adam Robitel and written by Leigh Whannell. It is produced by Jason Blum, Oren Peli, and James Wan. It is the fourth installment in the Insidious franchise, and the second in the chronology of the story running through the series. Starring Lin Shaye, Angus Sampson, Leigh Whannell, Spencer Locke, Caitlin Gerard, and Bruce Davison, the film follows parapsychologist Elise Rainier as she investigates a haunting in her childhood home.

Talks for a fourth installment in the franchise began in June 2015, with Whannell saying the next film would take place shortly before the first film. In May 2016, it was announced that Chapter 4 would have an October 2017 release date with Whannell writing, Blum, Peli and Wan producing, Robitel directing, and Shaye returning to reprise her role as Elise Rainier. Principal photography began in August 2016, and ended the following month.

The film was released in the United States on January 5, 2018, by Universal Pictures. It grossed $167 million worldwide, the highest of the franchise, and received mixed reviews, with praise for Shaye's performance but some critics stating that the franchise had run its course.

Plot
In 1953, Elise Rainier lives in Five Keys, New Mexico with her parents Audrey and Gerald and younger brother Christian. Elise and Christian encounter a ghost in their bedroom. Frightened, Christian looks for a whistle their mother gave him to call for help, but cannot find it. Gerald, furious, beats Elise and locks her in the basement. There, Elise opens a mysterious red doorway and is briefly possessed by a demonic spirit. When Audrey comes to investigate, she is killed by the demon.

Decades later in California in 2010, Elise works as a paranormal investigator with her colleagues Specs and Tucker. A man named Ted Garza calls, saying he's been experiencing paranormal activity at his house. Realizing it's her childhood home, Elise departs to help him. While investigating the house, Elise finds Christian's lost whistle, but it disappears again after she encounters a female spirit. Elise tells Specs and Tucker that she had seen the spirit before when she was a young girl. After this earlier occurrence, Elise fled the house in fear of another beating from her father, abandoning Christian.

The next morning, Elise, Tucker, and Specs meet Melissa and Imogen, Christian's daughters. Christian is still furious at Elise for abandoning him. Hoping to repair their relationship, Elise hands Melissa a photo of the whistle, telling her to show it to Christian. Later, Elise and Tucker discover a hidden room in the basement. Inside, guided by the female spirit, they discover a young woman being held prisoner. Ted storms into the room and reveals that he is responsible. He locks the group in and tries to kill Specs. Specs kills Ted in self defense.

Sometime later, after police clear the house, Christian and his daughters go inside to find the whistle. In the basement, Melissa is attacked by the demon from Elise's past, known as "Key Face." Key Face sends her into a coma, with her consciousness now stuck in the spirit realm of "The Further."

Trying to save Melissa, Elise searches the house and discovers hidden suitcases containing belongings of numerous other women whom had been held prisoner, including the young woman she had seen as a young girl. Elise realizes that like Ted, her father Gerald also kidnapped women and held them in the secret room. The woman she saw as a young girl, Anna, was actually still alive, and was later killed by Gerald. Suddenly, Elise is ambushed by Key Face and her spirit is taken into the Further.

Imogen, who possesses abilities much like Elise's, enters The Further with the help of Specs and Tucker. She is led by Anna's ghost into a prison realm where Key Face is holding all of the souls he has taken, including Melissa and Elise. Elise realizes Key Face had been controlling both Gerald and Ted, and feeds on the fear and hatred generated by the women they kidnapped. Key Face tries to coerce Elise into hurting her father's spirit as revenge for what he's done. Elise starts beating Gerald, but is stopped by Imogen and refuses to feed Key Face any more hatred. Key Face attacks Elise, but Gerald saves her before he is stabbed by Key Face, his spirit vanishing.

Key Face stabs Melissa, causing her physical body to start dying. He attempts to possess Elise. Elise blows Christian's whistle, and Audrey's spirit arrives, vanquishing Key Face. With Melissa dying, they move to find her body in The Further. They open a door and see a young boy, Dalton Lambert. Realizing they opened the wrong door, they leave the door open and find Melissa in the next door. Melissa's spirit returns to her body in the real world, saving her life. Elise makes amends with her mother's spirit and says goodbye. Elise and Imogen return to the real world and reunite with Melissa and Christian. Christian forgives Elise and she gives him the whistle.

In her sleep, Elise has a dream about Dalton and a red-faced demon. She awakens and receives a call from a woman named Lorraine. Elise had helped her son years earlier, and now her grandson Dalton needs the same help, which Elise agrees to help.

Cast

 * Lin Shaye as Elise Rainier
 * Ava Kolker as Little Elise Rainier
 * Hana Hayes as Young Elise Rainier
 * Angus Sampson as Tucker
 * Leigh Whannell as Specs
 * Spencer Locke as Melissa Rainier, Elise's niece and Christian's youngest daughter.
 * Caitlin Gerard as Imogen Rainier, Elise's niece and Christian's eldest daughter. She has also inherited the gift that Elise holds.
 * Bruce Davison as Christian Rainier, Elise's estranged younger brother.
 * Pierce Pope as Little Christian Rainier
 * Thomas Robie as Young Christian Rainier
 * Kirk Acevedo as Ted Garza, a man who makes residence in Elise's old home and calls for her help.
 * Josh Stewart as Gerald Rainier, Elise and Christian's abusive father and Audrey's emotionally abusive husband.
 * Tessa Ferrer as Audrey Rainier, Elise and Christian's loving mother and Gerald's wife.
 * Aleque Reid as Anna
 * Marcus Henderson as Detective Whitfield
 * Amanda Jaros as Mara Jennings
 * Javier Botet as KeyFace
 * Joseph Bishara as Lipstick-Face Demon
 * Ayub Veno as Imprisoned Spirit

Additionally, Ty Simpkins, Rose Byrne, Barbara Hershey, and Patrick Wilson reprise their roles as Dalton Lambert, Renai Lambert, Lorraine Lambert, and Josh Lambert, respectively, from the first two films, in archive footage.

Development
Prior to the release of Insidious: Chapter 3, Leigh Whannell was asked,

Whannell replied,

"I don't know. I haven't really thought about it yet. But for the purposes of this interview, I'll say that I'd like to explore the time between this film and the first film. That whole area there where Elise has rediscovered her gift, I think you could have a lot of adventures before she arrives. So I think there is a lot of room there. We've kind of established Lin [Shaye] in this particular film as kind of this superhero, so that would be kind of interesting to explore in the other films."

On May 16, 2016, it was announced that Chapter 4 would have an October 20, 2017, release date with Whannell writing, Jason Blum, Oren Peli and James Wan producing, Adam Robitel directing, and Lin Shaye returning to reprise her role as Elise Rainier.

Filming
Principal photography began in August 2016, and ended the following month.

Release
Insidious: The Last Key was released on January 5, 2018. The film was then released a week later on January 12, 2018, in the United Kingdom.

Marketing
On August 29, 2017, it was announced via Universal Studios' Halloween Horror Nights that the film would be titled Insidious: The Last Key. In October 2017, the first poster and two trailer were divulged via Universal and Sony Pictures Entertainment.

Box office
Insidious: The Last Key grossed $67.6 million in the United States and Canada, and $100.1 million in other territories, for a worldwide total of $167.7 million, against a production budget of $10 million. It is the highest grossing film in the franchise, surpassing the second installment's $161 million, and the first film of the series to gross $100 million overseas.

In the United States and Canada, Insidious: The Last Key was released alongside the wide expansion of Molly's Game, and was projected to gross $20–22 million from 3,116 theaters in its opening weekend. The film made $1.98 grossed from Thursday night previews, the highest preview total of the franchise. It went on to debut to $29.3 million for the weekend, finishing second at the box office behind holdover Jumanji: Welcome to the Jungle and marking the second-highest opening of the series and grossing, behind Chapter 2.

Critical response
On review aggregator Rotten Tomatoes, the film holds an approval rating of 33%, based on 111 reviews, with an average rating of 5.1/10. The website's critical consensus reads, "Insidious: The Last Key offers franchise star Lin Shaye another welcome opportunity to take the lead, but her efforts aren't enough to rescue this uninspired sequel." On Metacritic, the film has a weighted average score of 49 out of 100, based on 23 critics, indicating "mixed or average reviews". Audiences polled by CinemaScore gave the film an average grade of "B–" on an A+ to F scale, the lowest score of the franchise.

Screen Rant's Sandy Schaefer scored the film 3/5 stars, stating "Insidious: The Last Key is a solid finale to the Insidious franchise that gives series lead Lin Shaye the chance to take a graceful final bow." Brent McKnight of the Seattle Times rated the film two stars, saying "Old horror franchises don't die, they unspool tepid, uninspired sequels in perpetuity. And with the fourth chapter, Insidious: The Last Key, this saga is on a familiar path." Emily Yoshida of New York Magazine noted how "the fourth installment of Leigh Whannell's ghost-and-mediums horror series wraps up its own free-association illogic with an impenetrable tangle of woo-woo spirit-world mechanics and lingo", while John DeFore of Hollywood Reporter faulted the film's delivery of "the boos" as remaining "cheap and arbitrary."

Home media
Insidious: The Last Key was released on Digital HD on March 20, 2018 and was released on DVD and Blu-ray on April 3, 2018, by Sony Pictures Home Entertainment.

Sequel
On October 29th, 2020, it was announced that a sequel was in the works with Scott Teems writing the screenplay based on a story by Leigh Whannell and series star Patrick Wilson directing. It will focus on a grown-up Dalton, a role reprised by series star Ty Simpkins, as he heads off to college.