At a perfectly ordinary cocktail party, Francis is introduced to Billy and – although it slips right by him at the time – he falls in love with her at once. Billy is a serious, often glum person. An economic historian, she is indifferent to a great many things (clothes, food, home decor), frowns easily and is frequently irritated. Francis is older. He likes routine and a well-run household; he likes to pay for dinner, open car doors and call Billy at night to make sure she is safe. Both are happily married – but not to each other. So begins a whirlwind love affair, perfectly captured in this frank, funny irresistible novel, from its fabulous inception to its inevitable end.