This books tells the story about a young single attorney in Manhattan named Rachel. she has always been a consummate good girl, well until her 30th birthday whereby her best friend, Darcy, decided to throw her a party. That night some terrible thing happened, due to her excessive drinking that night, she ends up sleeping with Darcy's fiance, Dex.

After that night Rachel begins to wonder whether she has feeling for Dex or not, she just thought that night was only a one-night-stand, nothing more. She thinks about her friendship with Darcy, she felt guilty indeed, but at the same time she also has the feeling that she should pursue the man of her dream.

As the wedding date is getting close, Rachel has to make a choice, she realise that she can't have both, and the endings arent always neat. There is always a price that she has to pay.