On one side, a crooked banker, his nephew and his orderly; on the other, the honest friend of the banker and his daughter. Substitution of male and female characters that end with two marriages.

A rich sugar factory manager wants to marry his daughter to an aristocrat, while the young girl is in love with an engineer, employed in a rival company.

The maid and the driver of Sidonie de Valpurgis have the absurd idea of ​​subletting the hotel of their boss during her absence, and precisely to Sidonie's ex-friend, who wants to spend his wedding night there.

Boireau's father keeps trying to apprentice him to a different trade. Each time, the youngster annoys the customers and destroys the goods and property.