"Liv has never been a woman with a lot of female friends, but when she meets fellow new moms Beth and Binnie in a Mommy and Me play group, she knows she's finally found her best friends for life. Together, the three of them embrace being new parents: pulling together scrappy weekly dinners, sharing their favorite tips and tricks for caring for their kids, and trading in-jokes and references. But then Binnie introduces Ange. Rich, beautiful, and capable,...