When Alice Stanhope is diagnosed with ovarian cancer, she tries to stay strong for her teenage daughter, Zoe, who has severe social anxiety. Alice and Zoe have been each other's only family for many years, although with her diagnosis, Alice needs extra support from Kate (a nurse) and the hospital's social worker, Sonja. Alice keeps the news of her cancer from Zoe, but when she has complications, mother and daughter find that Kate is a godsend. Kate, though, is going through issues in her own life--mainly the sadness with not being able to carry a baby to term. Sonja, meanwhile, is hiding her own secret that her husband, George, abuses her. The Mother's Promise explores all these women's lives in detail and, while I enjoyed the story, there was a plot point near the end of the novel that I thought was unnecessary.