I was a bit disappointed with this episode. I love mystery novels and movies and I always feel cheated when the bad guy is just some random guy who we've never met before. Ally Sheedy's pivotal role turned out to be a stupid obsession from years back which didn't really fit. The puzzles in this episode were not as good as in the previous two. All in all a disappointing end to the trilogy. If the Yin/Yang trilogy was supposed to reflect the Red John story on the Mentalist it failed miserably. The RJ storyline kept us on our toes throughout the series and we felt how personal it was to Patrick Jane. Here finding Yin Yang was nothing more than an elaborate game. I love Psyche - it's a great show but I wonder how much steam it has left. So far, aside from the Yin/Yang trilogy all the episodes could be stand alone episodes. After 5 Seasons there should surely be a running story arc. Shawn and Juliet's relationship needs to be explored more. I wonder if Lassie will blow the whistle on the relationship considering that Shawn was the one who outed Lassie's in the Pilot.
In the final episode of the show (whenever that may be) I would like for Shawn to tell everyone at the SBPD that he is not psychic and show how he really works.
I love Lassie's charcater development - and we need to see more Chief Vick - she's great.