Rita, I had the same reaction to Orphan Black's last scene -- horrified laughter. Totally unexpected and yet completely believable. And it's in keeping with the rest of the series; one problem is solved but the solution itself creates a new problem.
I wasn't expecting much of Bluebeard, but I was pleasantly surprised. The dialogue IS wonderful. Just a couple of anachronistic expressions, but otherwise true to the period. All the actors spoke the language as easily as if it was their normal everyday speech; you don't find that often in period pieces.