Claire Masterson was the girl at school that Maggie Owen always wanted to be. Confident, good-looking, she was the first to know the facts of life, the first to Sun-In her hair, the first, easily the first, to go all the way. And when Maggie bumps into her twenty years later, it is as if nothing has changed: Claire"s life is one of career moves to New York and great sex with married men; Maggie"s is one of bringing up her children and never seeing her partner Jake, whose ever-demanding job has become his "other woman". Or has it? Jake is consistently working late, working weekends, taking working trips abroad ...Maggie is suspicious, and when Claire talks a little too knowledgeably about Jake, she starts thinking the unthinkable. Her friends think she should confront them, but Maggie"s got a better idea: she"s going to have her cake and eat it.