 Ernestine, the daughter of the school principal Mr. Muche, takes advantage of him, making him do her paperwork and watch her students, but Topaze naively takes this to be a mark of affection and asks his friend Tamise, another teacher, to quietly see if Mr. Muche would let Ernestine marry.In the meantime, a young woman named Suzy Courtois arrives; she is the aunt of a private student of Topaze and intends to enroll the child at the school, but she changes her mind after visiting.Topaze is asked to change the report card of a wealthy student to improve the student's grades, as the student is the son of a baroness.