Which of these was NOT a valid grounds for divorce in 1950s England, according to the lawyer Eileen Parker consults about divorcing her husband Mike, Prince Philip's private secretary?

Disappointed but still determined, Eileen resolves to procure proof of his adultery. With the help of a waitress at the notorious Thursday Club her husband frequents, she's able to do so.

Asked by Susanna Henke · Last updated 5 years ago · 6K views · SOURCE