I watched the episode you're talking about. I thought it was very over the top, with the "crazy Mormon military father" and the "wacko aunt" who turned this guy into a serial killer by telling him to "listen to God".
However, they were all over-acting SO MUCH (including the guy who played the victim), I came to believe that the over-acting was intentional. They were meant to be caricatures.
I disagree.