Lianna is a typical housewife in her thirties. She lives with her husband Dick, a university professor, and their children in a small New Jersey town. Her only real outlet is the psychology classes run by Ruth that she attends. One day, Lianna approaches Ruth and offers to become her assistant and they meet to further discuss the prospect of working together. She and Ruth make love. Lianna reveals her infidelity to her husband. He asks her to leave the house, and then reveals the reason for the break-up to their children, even though he has cheated on her in the past. Lianna finds herself alone for the first time. Her husband uses the incident in a vindictive way and her children treat her with discomfort. She moves into a flat on her own and gets a job in a local supermarket. Although they love each other, Ruth eventually leaves Lianna. Lianna is now forced to come to terms with the new realities of her life, and through her pain and loneliness redefine her relationships and her life.