Uncomfortable
By the end I felt they were really painting Keith as a sleeze--which having an affair on your wife with the babysitter while the kid is in the next room does make him a sleeze in my book--but the way I see it, the girls were every bit as sleezy as he was, so I felt a little uncomfortable with the film making him out to be this bad guy and not really acknowledging that these girls were just as bad if not worse.
Shiny...let's be bad guys.