Sorry this is pretty obscure but it is all I can remember from the movie:
I believe this movie falls somewhere between 2010 and 2013.
The young boy in this movie is possessed to some degree, he doesnt talk if I remember correctly.
In one scene, the mother is sitting on th couch with him trying to coerce him to admit his guilt in recent events. She heads to bed and a male protaginist arrives at the house and lets himself in and he sits down to talk to the boy, the boy kills him. The mother comes back out to find the boy watching TV.
Ive googled a fair bit, not much to go on, any help would be appreciated.