TL;DR: The Other People has a creepy enough idea behind it, but it's another movie that never really gets the most out of it - there are a few decent atmospheric moments, but the pacing is slow, the horror is inconsistent and too much of it feels underdeveloped.
Plot
When a new stepmom's troubled eight-year-old girl befriends a boy that lives in the shadows, the family learns why things that live in the dark don't want be seen.
The Atmosphere Is Decent at Least
The Other People is a movie that has a better horror concept than finished film.
The best thing about the film though is the use of darkness, as there are some really good-looking shots and the film understands that you don't always need to show whatever is supposed to be frightening, because shadows and limited visibility can do a lot of the work for you, and there are moments where the movie gets that balance right - the problem is that it isn't consistent.
For every scene where the atmosphere starts working, there are other sections where the tension disappears completely, which really makes it difficult for the movie to build any real momentum because you're constantly going from reasonably creepy to fairly ordinary.
A horror movie like this needs atmosphere to carry quite a lot of the runtime, and I don't think The Other People manages that often enough, especially as there's obvious potential in the childhood fears and the darkness, and the movie occasionally taps into that - a few moments are genuinely uncomfortable, and there is enough here to show that the filmmakers understand what could make this creepy, but it feels restrained.
The movie seems reluctant to really push its horror, so just when it feels like things might become disturbing, it often backs away again, which makes the horror feel fairly safe when it should be doing the opposite.
The Pacing Is a Problem
This movie takes its time, a bit too much sweet time - slow horror can be fantastic when every scene is adding tension, information or atmosphere, but when too many scenes just feel like they are taking their time because the movie doesn't have enough momentum, it becomes a problem.
A shorter runtime or a more aggressive edit would probably have helped, as while there's nothing wrong with giving a horror movie room to breathe, but there has to be something worth breathing for.
Visually though, The Other People is perfectly competent, as mentioned above, the darker material is where it looks best, and the filmmakers make reasonable use of lighting and shadows, where there are some shots that work well, particularly when the film keeps things obscured rather than showing too much.
But I'm not going to pretend it looks amazing, either, but it is definitely one of the films stronger points.
There are also several different directions The Other People could have taken, and I don't think it fully commits to any of them - it has the ingredients for a creepy supernatural horror movie, some childhood horror, some darker material and the potential for something unsettling, but instead of really leaning into one particular identity, it stays somewhere in the middle.
You get are flashes of where it feels like it could become something much much better, but those moments don't last.
Final Thoughts
The Other People isn't completely terrible, but I can't say I found much here that really impressed me, the basic idea is better than the execution, but that's the main problem too.