But what if one person could perfectly cater to all her emotional needs? Driven by this possibility, Rachel creates Frankie, the AI chatbot she programs with all the good parts of dating in middle age . . . and some of the bad. But as Rachel plays with her fantasy to her heart’s content, she begins to realize she can’t reprogram her ex-husband, her children, her friends, or the roster of paramours that’s grown unwieldy. Perhaps real life has more in store for Rachel than she could ever program for herself.