This episode losses a few points because of how idiotic Dean is with the red herring in the case. But the religious family and especially the mother that this episode is built around are some of the most effective human villains the show has done; they are really plausible as characters. The episode largely flips the script on the supernatural-i.e the supernatural person is the victim- in an effective way. The writers have done this before-i.e. Gordon in seasons 2 and 3-but it is nice seeing this idea realized again. The show has an anti-clerical edge to it and this episode is one of the hardest hitting in that regard. It was also nice to see Sam's evolution on that point.