Long Time No See by Susan Isaacs read by Cristine Mcmurdo-Wallis

Aristotle says that there are three sexes: men, women, and short women.
This book is about that third sex: short, married, murderous women with
happy helpful husbands and perky breasts. The kind who play tennis in the
morning and spend the afternoon decorating the guest bathroom. The
kind who think that wife #3 means she gets 3 furs. These women may be found in
“… Shelter Magazines – the ones that feature homes of couples so rich you know they don’t sleep together.”
But something goes very wrong in the life of one member of this sheltered sex. Something not very motherly, not very wifely, and the handsome, widowed 50 year old Elizabeth who happens to be in love with a cop, finds out what it is. In short, a fun, amusing murder in the suburbs.