Sheila Rubin is a quietly tormented housewife in ’80s San Diego. Behind closed doors, she battles extreme personal demons and a vicious inner voice. But things change when she discovers aerobics, sparking a journey toward empowerment and success.

An only child finds her life turned upside down when her father reveals that, over the course of his prize-winning career as a pioneering fertility doctor, he used his own sperm to conceive upwards of a hundred children, including two new sisters.