I feel like I've been pretty hard on Stevenson overall; I guess it's because I find his structural approach somewhat bewildering. I did like the way Jekyll and Hyde started, but since one of the characters talking about that door ended up having little to do with the narrative and the other is never part of the action in a significant way, I felt like it was something that didn't pay off.

But then, I am, as I think has probably been established, very very picky.

I'm not sure I'd say this was an updated version of a werewolf story, but they do tread the same ground--the beast in the man, the monster in the mirror. I think there's endless material there.