I watched this last night.
Didn't recognise any of the actors although Debra Kara Unger I feel I should know? Not that the acting's really bad - it isn't.
A lot of the budget was spent on internal sets for this imaginary huge apartment block in the middle of nowhere.
It wasn't bad, but I wouldn't rush out to rent and I personally won't be buying a copy.
trailer
http://www.youtube.com/watch?v=LgU271FAEfU