It's the period where Frid was basically walking off a cliff every day with feeling overwhelmed with the pace of it all and the nervousness kicks up this disturbingly realistic look of mingled craving and hysteria in Barnabas' eyes in some of his scenes with her.
Thanks for that, G. I didn't know the background of this.
Of course, a lot of us didn't know then that there are people who do vaguely similar things in real life, without the vampire element, kidnaping women and putting them in cells... Now I equate Barnabas and Maggie more to that, than I do to monster movie conventions. So yes, the whole thing is very disturbing. It's not the first time DS did it, either. I think the last few hours or minutes (hard to tell time in early DS) of Matthew Morgan get far too "real" for comfort. [spoiler]He rambles about killing mercifully, then chooses an axe, and a small one, so it will take a million blows. We see him going psychotically violent in front of our eyes.
The end of Dave Woodard, totally unexpected, morality warped and turned inside out, that is definitely on the list.[/spoiler]