An antique dealer (Michèle Valentin), who can actually play the piano, has a lover (Gabriel Pontello). But her daughter (Jennifer) gets mad on discovering this. She will not tell her father about him if her mother lets her have some fun with the man. The mother agrees and lucky Gabriel Pontello has it off with her in quite a hot scene. Then a tax inspector (Evelyne Lang) appears to check the antique shop's book-keeping (the only glimpse of the shop can be guessed through the presence of a guilded buddha in the room). She hears the daughter's rapture through the door and is soon led in by the landlady. A lesbian scene takes place while the lover is still busy with the daughter; then he takes care of the tax inspector and eventually comes on the daughter's mouth.
Notice the direct sound wich allows us to hear Jennifer Haussmann's real voice and some Rod Stewart music in the background (direct sound I told you!)