Georgia Bing and Alice Kinnaird have always been there for each other. Eager to help her best friend have another baby after several miscarriages, Alice donates one of her eggs. When Georgia learns she's going to have the baby boy she's always wanted, she's thrilled—until a devastating discovery destroys her dreams.

While Alice is happy to help her friend get pregnant, she also feels a twinge of disappointment that her own life is missing something . . . something she desperately craves. On the surface, Alice has everything—a busy social life, a great job, a faithful husband, an amazing teenage daughter. But her well-ordered world is knocked off its axis when she's tempted by a forbidden passion that threatens the bonds of friendship, marriage, and motherhood that sustain her.

As the safety of their past is shattered, Georgia and Alice must embark on journeys of self-discovery—odysseys filled with surprising challenges that will test them and force them to confront the truth about their lives . . . and the choices they've made.