Nancy Stokes, a 55-year-old retired teacher, has never experienced an orgasm, or any satisfying sex at all. Her marriage was stable but stale and her late husband was the only man she had ever slept with. To make things right, Nancy takes the leap and hires the services of Leo Grande, a sex worker – or “sex therapist,” as he puts it – in his twenties. But her plan is complicated by a seemingly insurmountable collection of inner barriers and taboos.