Yes, this is extremely uncomfortable viewing at times but it is a superb example of what can be achieved with a tiny budget and a small window for production and filming. The story of a Polish girl lured back into the family from hell, it is full of black humour and sadistic moments. The relationships between the existing family are very unsettling and the new "daughter" upsets the apple cart and, in turn, somewhat upsets theirs. It is the setting, the acting and the truly surreal moments which make it stand out from others of its type. I guess some would argue that the violence (and there is nowhere near as much as in films like "Saw" and "Hostel") is gratuitous but it is not a blood bath type of film, more of a sadistic and deeply unpleasant one. These sort of films are so difficult to rate. Give it a 4 or a 5 and say "excellent" and you wonder if you are quite right in the head to think something so uncomfortable to watch is good. Those who find anything of this sort disgusting probably think we're sick (and one wonders why they even pick up the DVD). We're not. Horror should be done like this. If you like unusual horror films then this is a must-see.