I just saw a couple of snippets of this movie a couple of years ago but it seemed interesting. A little like 'Home Alone' but with a mean streak. This expressionless faced teen was actually trying to kill the mob bad guys. There's a place for it in my video library I think; somewhere between 'Home Alone' and 'The Exorcist'.
From what I remember, the kid never says anything and is/was some kind of psychiatric patient. His parents are killed by the bad guys in a home invasion type robbery looking for money. It's filmed in a rural wooded setting with a farm type house with some outbuildings and the kid sets different wicked traps for the bad guys as they chase him around.