Jane (Meryl Streep), a successful restaurateur, has been divorced from Jake (Alec Baldwin) for many years, though they remain friends. When an innocent meal together turns into a affair, Jane finds she is now the ``other woman'' in the now-remarried Jake's life. Meanwhile, Adam (Steve Martin), an architect hired to remodel Jane's kitchen, is still stinging from his own divorce. He finds himself falling in love with Jane but soon realizes that he has become part of a triangle.