Willa Drake can count on one hand the defining moments of her life. In 1967, she is a schoolgirl coping with her mother's sudden disappearance. In 1977, she is a college coed considering a marriage proposal. In 1997, she is a young widow trying to piece her life back together. And in 2017, she yearns to be a grandmother but isn't sure she ever will be. Then, one day, Willa receives a startling phone call from a stranger. Without fully understanding...