Hot off the Quinn Brenner case, parapsychologist Elise Rainier receives a phone call from Ted Garza regarding paranormal activity at his house in Four Keys, New Mexico. The location happens to be the childhood home of Elise, where her father viciously abused Elise to stop her supernatural gifts and also where her mother was brutally murdered by a fearsome and hatred-energized demon known as KeyFace. Reluctant to return where memories revel in persistent and continuous nightmares, Elise and her two eager assistances, Tucker and Specs, take the case to aid the Garza’s request for a cleanse and to conclude the haunting and scarring chapter in Elise’s life, but the demon yearns power by luring Elise back to where it all began. With the help of her brother and two nieces, Elise’s family and friends aim to be a force against pure and undiluted evil hidden in the further.

Full disclosure….Insidious: Chapters 2 and 3 is not in my well versed cache of watched movies. I thoroughly enjoyed the atmospheric hit that is James Wan’s 2011 “Insidious” film starring Patrick Wilson, Rose Byrne, and the incredible Lin Shaye, but since that time, neither of the sequels have wandered into my unsystematic path. Except now. “Insidious: The Last Key” is the latest installment to the “Insidious” franchise and universe that’s directed by Adam Robitel, screenwriter of “Paranormal Activity: The Ghost Dimension” and written by franchise writer Leigh Whannell. In the grand scheme of chronological viewing, catching “The Last Key” first won’t divert and confuse too much from those on a methodical storyline timeline. Robitel’s chapter is a sequel to the prequel, “Insidious: Chapter 3,” and aside from an Easter egg here and there, there’s little reference and nothing substantial bonding to the next two films that are in sequential order.

Lin Shaye returns to reprise her role as parapsychologist Elise Rainier for the fourth time, picking up her character’s telepathic shtick like it was yesterday. Shaye’s one of acting talents that just flourishes like wild fire no matter what the type of role or movie she’s in or even affiliated with. Her ability to adapt and to get down and dirty with her characters proves why we love her thespian range from bust-a-gut comedies like “There’s Something About Mary” to indie horrors like “Dead End.” The now 74-year-old actress is more red hot now than ever as Elise Rainier whose even more popularized by her co-stars, writer, Leigh Whannell and and Angus Sampson as Specs and Tucker, whom like Shaye have reprised their roles for a fourth time. The comedic duo lighten up the dark toned premise, offering up dad jokes and snickering hairdos to offset to jump scares and gnarly KeyFace. Spencer Locke (“Resident Evil: Extinction”), Caitlin Gerard (“Smiley”), and the original 1971 Willard, Bruce Davison, play the supporting cast of Rainiers long lost, reunited family members caught in the middle of her quest for conclusion. Rounding out the cast is Kirk Acevedo (“Dawn of the Planet of the Apes”), Tessa Ferrer, Josh Stewart (“The Collector”), and contortionist, and Doug Jones’ Spanish rival, Javier Botet as KeyFace.

“Insidious: The Last Key” works on many positive levels: has a solid premise with Elise burning to finish the nightmare she had unleashed many years ago, subplots involving Ted Garza’s role and Elise’s abusive father, a dysfunctional family relationship between all the Rainiers, and some serious eye-popping scares throughout. The further also opens up more and becomes a vast area for exploration into all the creatures, ghosts, and demons that lurk in the otherworldly dimension, setting up future sequels and/or spinoffs. What doesn’t work as well is the rather anemic and lackluster climatic finale that took KeyFace from an extremely high frightfully monstrous pedastal, continuously building up the character to be the most powerful antagonist Elise has yet to encounter, and have the rug pulled right from under it’s horrid feet by squandering it formidability, flattening it with the single uppercut swing of a… lantern.

Adam Robitel’s “Insidious: The Last Key” finds a home on a Blu-ray plus Digital HD combo release by Sony Pictures and Universal Home Entertainment. The release is presented in high definition 1080p with a widescreen, 2.39:1 aspect ratio. The image quality just tops out with overly spooky cool blue hue that’s gloomy, dark, and ominous, all the attributes perfect for a supernatural thriller, while managing to sharply define the details on the actors and their surroundings. The English 5.1 DTS-HD track stings where jump scares are prevalent and appropriate. Dialogue has clarity with mild ambiance supporting the localized and conventional horror audible moments while brawny LFE bursts on-screen in a bombardment of scare tactics whenever KeyFace suddenly shows face. Bonus features include an alternate ending (complete with cheesy one-liner from Lin Shaye), eight deleted scenes, a look into the “Insidious” universe, going into The Further, Lin Shaye becoming parapsychologist Elise Rainier, and a segment entitled “Meet the New Demon – Unlocking the Keys” to KeyFace. Perhaps not the epitome of the franchise, but “Insidious: The Last Key” absolutely fits into the franchise’s ever expanding universe and unlocks more of the spine-tingling backstory to one of horror’s contemporary and unremitting heroines ready to confront evil.

“Insidious: The Last Key” purchase at Amazon!