What a great example of working with less or moving in space!
I actually disagree with others that knock this; I think it is a feature and not a bug.

The story and plot is very straightforward, familiar, and even overused or seen 100 times before. In her first feature debut, Chloe Okuno takes all of that in stride and makes something great here.
The tension building comes from someone who has been doing this for a long time, score, the lighting, location, camera, etc are all top-notch. Maika Monroe in the leading role does a phenomenal job here and just lets her face and expression tell the whole story.

If you're a fan of atmospheric, thoughtful, and physiological thriller you should really give this a spin! Just remember that flower, sugar, and butter may make a cake, but not all cakes are the same.