It is nice to see Elizabeth and Roger together and in agreement on everything in this episode.
Elizabeth asks Carolyn if she wants to accompany Vicki and David to Boston, where her (Carolyn's) aunt Catherine can arrange all the parties and shopping she'd like. Touching the scarf around her neck, Carolyn emphatically refuses. I can only assume that Catherine must be Elizabeth's sister. After her experience with Jason, Elizabeth certainly wouldn't want anything to do with any other McGuires! But sadly this aunt is never mentioned again--they could have had a whole story line about her. All that shopping and partying sounds like fun. Or maybe she's a more distant relative known by the courtesy title of aunt. (When I was a kid, I had to address all the neighborhood grownups as "aunt" or "uncle.")
I can't really tell from the rather fuzzy frame grabs, but I think Julia's jacket is made of mohair, a soft and fuzzy type of woven wool fabric that was popular at the time. (Knitted mohair sweaters, big and fuzzy, were also popular.) Has anyone else noticed that all of Julia's jackets are equipped with pockets? Later, Carolyn wears a very smart navy blue trenchcoat with bright red facings.
Julia takes the hypnotized Vicki to a new room in the basement of the Old House. This room, too, has a coffin--or maybe this is where Barnabas sleeps now that the main basement area is Julia's lab.
Later, Carolyn tells Barnabas all about Julia's treachery. “Hoffman” must be punished, Barnabas decides. Are you going to kill her? asks Carolyn eagerly, perhaps hoping he’ll let her watch or even help him.