Well, Corbin Bernsen did a really good job, so he deserves credit where credit is do. He was legitimately creepy when he needed to be, and that came as a shock because that isn't really the kind of role that I know him from. To see him pull it off so well was a pleasure to watch.
However, the movie came short of what it could have been. If it had been made in the 70s it would have been great. Had it been made in the 80s, it would have been great.
But, it was made in the 2010s and because of that it ind of looses sight of any real plot and instead just becomes senseless violence. 30 or 40 years ago, the violence would have had more of a story behind it. It would have been blunt, but it would have served the story better.
It got to the point where the violence stopped serving the story and became violence for gore and shock and, honestly, that's now what I expected when I sat down to watch the movie. I expected a tense thriller and halfway through it turned into Saw and anything thrilling or tense kind of vanished.