After a disappointment in love, Alain tells his mistress how he gradually sank into libertinage: from his beginnings with a teacher in art history, then with a supermarket saleswoman, until his discovery libertine parties.
To get a job and marry the nice Yvette, a quilt teacher, Julien goes to Paris. On the station platform, he swears loyalty to her, but as soon as he arrives in the capital, the seductive provincial wreaks havoc. His insatiable landlady, all the saleswomen of the shop where he is hired as an accountant, at the slightest pretext, solicit him, undress and abuse him. Finally arrives the boss, Joëlle… who is the exact double of Yvette, without her pigtails! Julien then loses his head and falls in love with the double.
