Interesting episode---I certainly wasn't expecting the WiB to be his mom.
One thing I did notice during the episode, though, was that it seemed like the producers completely ignored the police-captain-conspiracy aspect. They didn't have to focus the entire episode on it, but if someone had simply watched this episode and not the rest of the season, they wouldn't even know the captain was a Wesen, much less in a plot against Nick.
I'm glad that Nick finally (tried to) tell Juliette the truth. I wonder what they will do next season? Will Nick get Munroe to demonstrate again? Will the illness make Juliette forget? And what was the ex-witch trying to accomplish anyway? Just trying to make Juliette's pupils dilate?
Finally, did anyone catch the commercial for the Daniel Radcliffe movie The Woman in Black
? That can't have been a coincidence.