If you haven't heard of it, then don't be alarmed. I haven't heard of it myself until I received a blurb about it via a newsletter I'm subscribed to. In all honesty, that's where I receive most of my citations about upcoming films, though I am contacted directly from time-to-time via email by studio and marketing folks willing to put in the extra elbow grease to chat directly. And it isn't all that hard, peeps: all one must do is surf around SciFiHistory.Net, and the deets are there.
In any event, here's the movie's premise as provided by the good people at IMDB.com:
"A haunting tale of family life. A vulnerable young boy finds his mother pushed out of the family home by a strange new woman, and he must confront the terrifying supernatural forces that seem to move in with her."
True: that little synopsis really doesn't reveal all that much, but this award-winning flick has put out a good trailer. I'd encourage you to watch, though it's equally light on details but heavy on some creepy visuals.
Trailer is below. You know what to do.