- Alain L'Yle plays Guillaume
- Jacques Couderc, uncredited, plays the peasant, non-sex
- Piotr Stanislas plays Édouard
- Jacky Arnal plays Jacky
- Jack Gato as Jacques Gato plays the delivery man
- Richard Lemieuvre plays Charles
- Dominique Irissou plays a guest
Guillaume and Laura (or Flora?) are in their car (she sucking him) on their way to the mansion she has inherited from her aunt Cybèle. They are given directions by Jacques Couderc dressed and speaking like a peasant. They are welcomed by Mélanie Verdier who was Miss Cybèle's last housekeeper and who shows them around the place. The departed was a free-minded lady with a collection of erotic art pieces. They discover her diary and read from it as we are shown the scenes:
October 12, 1928 - she danced on a table and made love with Édouard.
October 20, 1926 - she ate caviar on her housekeeper's belly (Mélanie's grandmother) and they made love.
In the evening, while making love, the couple is watched by a masturbating Mélanie through a viewing device allowing her to see what's going on in every room of the house.
In the morning, the housekeeper shows the device to the couple who watch her welcoming a couple of guests (Cathy Stewart and Jacky Arnal) who will be the first to be spied on by the couple, while they themselves are being spied on by the housekeeper...
In the morning Mélanie joins the guests for a threesome, watched by the new owners of the place who is soon join the action. While she is out, the couple visit Mélanie's room to see if she has access to the system. They discover another diary mentioning Cybèle's desire to be buried in her garden and also the map of the whole system. Back in their room they test Mélanie's room and see her having sex with Jacques Gato.
House-warming party. Everybody is dressed in 1920s fashion. Here come Olivia Flores with Richard Lemieuvre, Claudia von Statt with Dominique Irissou and, along with the two L'Yles, Cathy Stewart - notice her smoking pussy – and Jacky Arnal. Of course the party turns into an orgy and Mélanie ends up with three men coming on her, and steals the scene.
Film information updated with help from Dictionnaire des films français pornographiques et érotiques 16 et 35 mm.