Jane Green - Promises to Keep

Callie Perry is a successful family photographer living in upstate New York. She adores her two daughters, has great friends, and actually doesn't mind that her workaholic husband gets home at 9 p.m. every night-that is, when he's not traveling six months out of the year.
Callie's younger sister, Steff, on the other hand, has never grown up. She's a free spirit, living in downtown Manhattan and bouncing between jobs and boyfriends. Lately, she's been working as a vegan chef, even though she can't cook.
Lila Grossman is Callie's best friend and has finally met the man of her dreams. Eddie has two wonderful children, but also a drama queen ex-wife who hates Lila. And then there are Callie and Steff's parents, Walter Cutler and Honor Pitman. Divorced for thirty years, they rarely speak to each other.