Good to see you around here again, and with a story to boot! I don't really have a clue as to what's going on, but then I'm a bit sleep deprived and likely to only be moreso (I have to take my aunt to the airport at 4am, which really doesn't suggest much point in even getting to sleep at all.)

I'll have to page through the Who's Who to check up on your "no new characters" claim, and maybe see if I can deduce what's going on. Still, I always enjoy a Champagne mystery, and repeatable murders are certainly mysterious...