There’s really limited utility for a review here. By the fourth installment in a franchise, you’re either on board for what the Insidious series is peddling or you’re not, and The Last Key isn’t going to change your mind, one way or the other.
The main reason to get excited about The Last Key prior to going in was Adam Robitel in the director’s seat. His debut feature, The Taking of Deborah Logan, was surprisingly great, with at least one indelible image that has made the rounds in .gif format so much that you’ve probably seen it by now, even if you’ve never seen the movie and didn’t know what it was from. Sadly, while Robitel sets some really nice mood early on, there is nothing in The Last Key to quite live up to that particular legacy, but there is a big, creaky ghost with skeleton keys for fingers, played by Javier Botet, of course, who has carved out a nice niche for himself playing big, weird, gangly ghosts.
Like all the previous installments after the first, The Last Key is guilty of not going big or weird enough in its final leg, though there are some welcome changes of direction midway through. And while the temporal shenanigans of Chapter 2 never make themselves apparent, there is a moment that feels much like one of them near the end of The Last Key, with one of those pesky red doors.
While engaging in many of the same kinds of jump scares that have been a hallmark of the series and its imitators, Robitel also resists the temptation of them more often than he is probably being given credit for, dragging out sequences of tension to almost excruciating length, occasionally to the point where the tension just dissipates rather than snapping.
What the film does do well is to remember that Elise is the beating heart of this franchise, and to give Lin Shaye (as well as screenwriter Leigh Whannell and Angus Sampson, playing Specs and Tucker) plenty of screen time. We also dive much more into Elise’s backstory. Which probably wasn’t strictly necessary, but doesn’t really do any harm, either.
I’m a notorious Insidious apologist, and I’ve loved every installment in the franchise so far, even the mostly forgettable third film. And I loved this one. But even I’m ready to hold up my hand and say that The Last Key should probably also be the last Insidious film. At this point, the snake has well and truly eaten its own tail, so it’s probably time to call it a night. Unless you want to give me the TV series where Specs, Tucker, and the ghost of Elise solve cute mysteries. I’d be down for that.