Mildred separates from Bert, her unemployed husband, and sets out to support herself and her children. After a difficult search she finds a job as a waitress, but she worries that it is beneath her middle-class station. More than that, she worries that her ambitious and increasingly pretentious elder daughter, Veda, will think her new job demeaning. Mildred encounters both success and failure as she opens three successful restaurants, operates a pie-selling business and copes with the death of her younger daughter, Ray. Veda enjoys her mother's newfound financial success but increasingly turns ungrateful, demanding more and more from her hard-working mother while openly condemning her and anyone else who must work for a living.