Christian has just returned home after failing his A-levels. His father, incensed by his failure, asks a neighboring teacher to give him lessons. But Christian falls for Simone, the teacher's cousin. Jealous, Christian's girlfriend Bichette arranges for the father and the teacher to learn everything. Christian is sent away and reunited with Françoise, the house's pretty maid, who had been dismissed. Bichette has had it.