My other flea market purchase was A Taste for Death. Once I started reading, I realized I saw it years ago on PBS Mystery. But that was all right - it was long enough ago that I didn't remember who the killer was!
Vintage P.D. James. Rich bored dilettantes, resentful servants, nosy church ladies, with an anarchist or two thrown into the mix to keep it interesting. This book was from 1986 so some of it still seems quaint to us, but her writing is fresh anyway.
I recommend it. Now I am back to the hundred must-read novels... will update when I am done the newest one