I did enjoy this movie, don't get me wrong, there was some good tense moments and on the whole it's a pretty smart way to go about their sinister desires. I know if someone sent me a video depicting someone being murdered I would think it was someone's idea of a sick joke... But there's also too many moments in this film where I wanted to whack them round the head myself! Under no circumstances, would a pregnant woman living alone, after just receiving a call from their friend screaming at them to get out the house, upon hearing clattering somewhere in the house go and look for the perpetrator!! Having experienced pregnancy myself, I can tell you that every instinct in your body would scream at you to get the f#ck out of there. There were a few more incidents like this that frustrated me beyond belief and the ending reminded me of a techno version of Hostel but all in all, not a bad watch if you're looking for a mild horror to watch alone one evening :)
