This is the 4th book in the mommy-tack mystery series.
I've read all of Ayelet Waldman's Mommy Track mysteries and this one may be the best yet. Juliet Applebaum is at work again, to clear the name of her best friend's step-brother. She must discover what went on in the past to figure out what has happened in the present. In the course of her investigation, she begins to wonder if she won't clear her friend's step-brother only to find out that her friend is the killer!
The usual humor of Ms. Waldman's mysteries is in full flow here. Juliet is someone you'd love to have as a friend in the good times and would hope to have as a champion in the bad times.
It's the milieu in which they are set which causes me to number certain mysery books among my favorites.
L.A. and is the setting for the Mommy Track Mysteries, Juliet and her screenwriter husband are probably not even on the "D" List, but they interact with other Hollywood circles. There's plenty of humor in the various "scenes" that Juliet encounters as a part-time detective.