When Amy and Effy Tribble lose out on an inheritance, they place an advertisement in the Morning Post and hire themselves out as professional chaperones. Vowing to prepare even the most difficult misses for marriage, the Tribble sisters will spend a London season on each client, educating them in their School for Manners.

Felicity Vane, their first assignment, turns out to be more of a challenge than they could have ever imagined. Not only is Felicity indifferent to the idea of marriage, she is also a spoilt brat! And despite their best endeavours, Felicity insists on remaining unrefined and hoydenish.