The universe of”The Conjuring” reveals it may be reaching its eerie limits when a demon pops up in the latest movie from, of all things, a waterbed.

This a well-worn punchline of’80s suburban life may be home to Satan’s spawn might be performed for camp at any other film, but maybe not here.

This gentle franchise is all about timeless frightening stuff — swing collections that strangely transfer, battery toys which turn and doorknobs that spin. Hence that the waterbed was possibly a step too far. What’s next? A bloody Rubik’s Cube?

It’s a signal that while the franchise soldiers on unironically, the movies can fail to keep up with the real world, where the algebra of dread is tougher now. Almost 600,000 people in the usa have expired out of a murderous aerial plague and Warner Brothers thinks it could terrify those of us who survived — now seated in theaters masked and socially distanced and somewhat paranoid — using a moist bed demon?

“The Conjuring: The Devil Made Me Do It” is a nice setup but within a increasingly creaky franchise, appropriate for movies which love the sound of rotting wood floors. It leans into old school terror without actually advancing the conceit or increasing the scare factor. Its principles are becoming more and more simple to predict.

Patrick Wilson and Vera Farmiga are back as Ed and Lorraine Warren, a set of married, devoutly Roman Catholic paranormal pros. The previous movie drew them”into one of the most diabolical cases.” The new one leads to”the most sinister discovery of the livelihood.” (Here’s betting the fourth will be known as the very”pernicious” or even”baleful.”)

According to a real-life murder trial, the film opens with an exorcism of an 8-year-old in southern New England in 1981 that catapults the demon inside the kid to the body of a buddy, Arne Johnson, who then afterwards kills his landlord. Charged with murder, Johnson claims demonic possession, one of the first known cases where defense is used.

David Leslie Johnson-McGoldrick’s screenplay — he co-wrote”The Conjuring two” — uses real history and then opens it up to a wider mystery, which may incorporate a missing teenager in another nation. The Warrens should find out who is behind it and prevent them. “A master Satanist isn’t an adversary taken softly,” they’re warned.

Director Michael Chaves has real art with eeriness but we can even see the routines: Quiet scenes start ordinarily until an odd occurrence happens — say, a cereal box replacements — then the audio gets ominous and the camera becomes shaky before the split-second shocking addition of a disturbing figure.

Fans of the franchise possess some nice call-backs into Elvis and the demonic doll Anabel, while novices and veterans alike might never have the ability to hear Blondie’s”Call Me” the exact same way again.

Even the”Conjuring” world, kicked off by founder James Wan, today contains three”Conjuring” films and such movies as”Annabelle” and”Annabelle: Creation,””The Nun” and”Annabelle Comes Home.”

The latest movie perhaps belongs in the Warrens’ basement decoration room with all the other people, sealed off from the current day like a dusty museum of artifacts. It’s a place to retreat to when you’re searching for what could only be described as comfort terror — lots of flashlights, rats and bones cracking.

But look closely through the end credits and you will see an uncomfortable reminder of our present-day fears: There were three COVID-19 compliance officers around the set. This reminds us of something frightening sufficient to wet the bed for real.

Pictures release, is rated R for”terror, violence and some disturbing images.” Running time: 120 minutes.