A woman drifts through multiple marriages in search of stability.

Jo, the mother of seven children, divorces her second husband, Giles, in order to marry Jake, a successful but promiscuous screenwriter. Though they are physically and emotionally compatible, they are torn apart by Jo's strict marital morality. Following the birth of another child and a terrifying experience with a mentally unbalanced woman, Jo seeks psychiatric advice. Still perturbed, she refuses to accompany Jake to Morocco for location shooting but does agree to undergo sterilization. Following her recovery, she is informed by a sardonic friend, Conway, that Jake has been having an affair with Beth, Conway's wife. Horrified, Jo has a savage fight with Jake and then returns to her second husband. Jake's father dies, and at his funeral, Jo is ignored. Shattered, she retreats alone to an old house in a converted windmill. One day Jake arrives with the children, offering hope that perhaps there will be a new beginning.