Elise Rainier returns to her childhood home to face her fears. The fourth in the Insidious franchise is a prequel which loops back to part one. For series fans only, but well-enough handled in its jumpscares and creepy moments, plus one great idea, decently handled.
Part 3 is a prequel, offering backstory on Elise, and her team-up with Specs and Tucker, plus another demonic yarn. Lots of jump scares, handled well enough if you like this sort of thing, with series screenwriter/actor Whannell now elevated to director.