I watched the last night around 2 am, (that's the most time I watch horror movies) and honestly it has a Good starting and a brilliant ending. It was not jump scare movie but a well written horror story. The character Mia who was grieving her Mother's suicide. Another hand Reilly a teenage boy who's timid but want to try the Hand Thing (Medium). As he's a minor and being vulnerable towards the other world (Supernatural world) caught off guard because of Mia, as She thought it's her Mom talking through Reilly.
That's how it got messed up and ended up killing lot of innocents.
I felt they could have explain more about the Hand, and why Mia's mother committed suicide.
Otherwise, it was a worth watching movie, Indeed.
I'll definitely give a 4/5.
Acting were to the point, no extra complications or extra characters.
Just watch the movie, you'll enjoy.
Thanks for reading.