Rachel Miller & Darcy Rhone have been best friends since childhood. They've shared birthdays, the horrors of high school & even boyfriends, but while Darcy is the sort of woman who breezes through life getting what she wants when she wants it, Rachel has always played by the rules & watched her stunning best friend steal all the limelight. The one thing Rachel's always had over Darcy is the four-month age gap which meant she was first to being a teenager, first to drive, first to everything
- but now she's about to be first to thirty. & Darcy still has a charmed life. On the eve of her thirtieth birthday, Rachel is shocked to find herself questioning the status quo. How come Darcy gets a glamorous job at a PR firm & the perfect boyfriend, while Rachel grinds away at her despised job as an attorney & remains painfully single. Is it just luck? Or, looking back at their friendship & their lives together, is it a bit more complicated than that? Then an accidental fling complicates everything, & it's time for Rachel to make a few hard choices. & she's suddenly forced to learn that sometimes true love comes at a price.. .