Parapsychologist Elise Rainier and her team travel to Five Keys, N.M., to investigate a man's claim of a haunting. Terror soon strikes when Rainier realizes that the house he lives in was her family's old home.
Hardcore horror audiences won’t find much that’s frightening in Insidious: The Last Key — there’s not even that wonderfully unsettling shriek of violins under the title this time — but as a delivery system for more great work from Lin Shaye, it more than accomplishes its mission.
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IGN
William Bibbiani
Insidious: The Last Key may be somewhat engaging but it’s also sloppy and doesn’t amount to much.
The fourth installment of the Insidious series has deft scares and some nifty twists, all of which don’t entirely distract from how strangely inconsequential The Last Key ultimately feels.