When Lucy's husband loses his job and is relocated to New York, she is forced to give up her posh London life and move to a tiny Manhattan apartment. Homesick and resentful at first, Lucy soon finds herself embarking on an exhilarating new affair - no, not with her husband, although she is surprised to find they do still love each other, but with the city itself and the three women she meets at the school gates who, against all odds, become her friends.

Christy, married to a wealthy older man, questions her life choice as she fantasizes about her doorman and tries to make peace with her angry stepdaughter. Julia is a workaholic television writer who becomes convinced her family is better off without her, until a neighbour's dog makes her re-think everything. Meanwhile Robyn, bread-winning wife to an aspiring novelist, has had enough. She wants what her friends are having - even if it means an affair with at least one, if not all, of their husbands . . .