Rachel Miller and Darcy Rhone have been best friends since childhood, but while Darcy breezes through life getting what she wants when she wants it, Rachel has always played by the rules and watched her stunning best friend steal all the limelight. The one thing Rachel's always had is a four-month head start on Darcy which meant she was first to drink, first to drive, first to everything - but now she's going to be first to 30.

On the eve of her thirtieth birthday, Rachel finds herself questioning their friendship. How come Darcy gets a glamorous job at a PR firm and the perfect boyfriend, while Rachel grinds away as an attorney and remains painfully single? But when an accidental fling complicates everything, it's time for Rachel to make a few hard choices. And she's suddely forced to learn that sometimes true love comes at a price...