Édouard Loriot, a wealthy provincial, wanting to establish his reputation, goes to the home of Dubarroy, a famous actress he does not know but whom he dreams of making his mistress. Lucile, for her part, is convinced that playing the piano could help her find a husband, so she expects a renowned music teacher for a piano lesson. When Édouard shows up, the misunderstanding is mutual. From misunderstanding to misunderstanding, the twists and turns accumulate under the gaze of a rustic and clumsy butler.