London, 1965: A brilliant young woman--a prescient advocate for women's rights at the dawn of modern feminism--has just gassed herself to death, leaving behind a suicide note, two young sons, and a soon-to-be-published sociological study, The Captive Wife: Conflicts of Housebound Mothers.
Hannah Gavron had seemingly led a charmed life since childhood: She had been a champion equestrian, had studied acting alongside Peter O'Toole. As a bright,...