L'incomparable mademoiselle C.

Shortly after her arrival in the sleepy little town of Saint-Gérard, eccentric Miss Charlotte decides to fill in for the local mailman, who has had an accident. Overflowing with imagination, the young woman wants to bring some "spling" into the lives of the town's gloomy inhabitants.

With the help of Léonie, an adolescent girl, Miss. C tries to bring Saint-Gérard to life again by initiating the restoration of an abandoned theater and encouraging the young people to put on a rap show.