I wasn't really sure what to make of this movie. A young man is spiritually lost, he has lost his wife and she believed in the supernatural world. He wants to prove there is nothing in it and chooses to make a film of his experiences trying to connect with the afterlife. He is a film maker by trade, so the film plays out in the style of found footage. A trope that is overdone in my opinion, especially in horror films.
So he visits a variety of fraudsters who make claims that they can summon demons or talk to the dead. After a few he starts to develop a ringing in his ears and strange things start to happen. His sidekick abandons the project, he doesn't like what is going on. It turns out that there is some entity trying to take charge of Michael.
This isn't an enjoyable film to watch, there are some unpleasant scenes (for example, he enters his sisters bedroom while she is sleeping and lifts the duvet to feel the top of her thighs) and I found it a bit on the long side. He does indeed seem to be possessed by the close of the film, so he got what he wanted I guess. I didn't like the character of Michael and that's quite important with a film like this. Perhaps others would like his character but I couldn't muster up any sympathy for him, if you go looking for trouble and then find it where you didn't expect to, more fool you.