In 1979 Santa Barbara, Calif., Dorothea Fields is a determined single mother in her mid-50s who is raising her adolescent son, Jamie, at a moment brimming with cultural change and rebellion. Dorothea enlists the help of two younger women — Abbie, a free-spirited punk artist living as a boarder in the Fields’ home and Julie, a savvy and provocative teenage neighbor — to help with Jamie’s upbringing.