When Amy and Effie Tribble, two charming but impoverished spinster sisters, lose out on an inheritance, they place this 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.
Maria Kendall is seemingly a dream client - beautiful, impeccably mannered, effortlessly graceful and extremely well dowered. In short, she doesn't seem to need the Tribbles' help at all. But then the sisters meet her parents and realise that they do have a problem on their hands - not with the perfect Maria, but with her overweening, gauche and socially over-ambitious parents!