Surprise! After a string of dry and flavorless production-line items, Bagby (a.k.a. Aaron Marc Stein) has come up with a genuinely entertaining--if not particularly mysterious--episode for ""Bagby"" and Inspector Schmidt of Homicide, N.Y.P.D. The murder victim: tycoon Tommy Thomas. The suspects: his six ex-wives, all of whom meet for the first time at a posh party just hours before Tommy is found nude and shot dead in his East Side duplex. Since Bagley is also present at that party (during which the most recent ex-wife threatens to kill Tommy with her little purse pistol), he's drawn into the case, forced to be moderator while the six boisterous ladies feud, gossip, flaunt, and--wonder of wonders--provide alibis for each other. And the comic energy (who knew Bagby could brew such nifty dialogue?) keeps the real culprit from being totally obvious. Bagby & Schmidt are always a fast read; here they're fast and fun.