"We need an heir."
Paul Château-Têtard, a 45-year-old bachelor from the best of Parisian nobility, has – for the first time in his life – to take the Metro, and even buy a ticket. It is with extraordinary luck that the beautiful young Ava happens to be sitting at the counter: a spark ignites and wedding bells begin ringing in the distance.

Ava
La Reine-Mère
Paul
Jerôme
Raoul
Dalac
Maître Geoffroy Crépin
Conchita
Dr. Anigo
L'Anglais
La jeune fille anglaise à l'ombrelle
L'agent du métro