Two twin sisters, nieces of the mayor of Buissons-les-Amours, are, one very wise, the other evaporated. The lover of the second falls in love with the first whom he will marry after being forgiven for his conduct.
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.