Poorly educated by her father, a wacky researcher, Claudine is a teenager full of life who loves her small village school run by Miss Sergeant. A new teacher, Aimée Lanthenay, arrives at the school. Seemingly awkward, she is actually an arrivist who manages to get the departure of Miss Sergeant.
A small town gentleman learns that his prim and proper wife was once a showgirl, and that, even worse, he had enjoyed a one night stand with her in the Orient.
Auguste Chantilly leads a well-regulated life in the countryside, watching over his ward, the young Arlette. But in the city, he becomes Hubert, and leads a much happier life. Arlette is very keen to get to know this Hubert whom she thinks is her tutor's brother, and things get complicated.
