Watch Little Evil instead.
Basically every comparison made for this movie spoils it, and unfortunately it is a very simple and tired concept. It's executed in an interesting manner, but certain things are really predictable. Also the whole "is she crazy or not?" question throughout the movie is not particularly a compelling one. It's pretty clear to the viewer what's going on. I predicted very early on something about a character, and then at the end we find out it's true. For me, the ending honestly was not exciting because of that, even though it's supposed to be a huge shock (including the other stuff that happens right at the end).
Unfortunately, I found the ending made me ask many more questions about the characters' motives out of confusion. There seem to be some holes. A lot of stuff just isn't explained - things that would make the movie better if they had.
The audio also goes from loud jumpscare type sounds to whispers that are barely audible. There is a lot of blood and gore. The movie is visually appealing. The characters are one dimensional. As an avid horror fan, this didn't really feel like horror. Only two parts "jarred" me.
I could have put my time to better use, but it wasn't what I'd call bad. It was entertaining enough to watch, but you're not missing anything by not watching it.
