- Gérard Grégory, as G. Grégory, non-sex, plays Damien Valère, a journalist
- Cyril Val in couple 1 with Marilyn Jess
- Norbert Ciret in couple 2, father (?) of Virginie, simulated sex only
- Hubert Géral plays a sex toy salesman/flasher
- Richard Lemieuvre, uncredited, in couple 3 with Nicole Segaud
- Guy Royer plays the male in the ménage à trois
- Jack Gatteau, as René Gas, plays 'l'amateur de pinces' with a brunette Marilyn Jess
- Jean-Pierre Armand plays a "légionnaire"
- Claude Alain, wearing an obviously fake beard, plays a "légionnaire", non-sex
- Claude Franck in couple 4 with Sandra
Mélina Lanvin (Barbara Moose) is a sex-therapist who visits couples at their homes. She's followed by a journalist (Gérard Grégory) who's writing an article about her. One day, Mélina gets raped by two "légionnaires". From then on, she'll spend her lifetime in Damien's protecting arms. (From a review originally published in La Saison Cinematographique 1981, translated by Prophilo.)
This was released on video in Italy using the title Condominio erotico, stolen from an earlier release of a Franz Marischka film from which some credits - Gisela Krauss, Daniela Sander - were also stolen.
Mélina is a sex therapist who treats only couples but makes home visits (accompanied by journalist Damien Valère) sometimes giving practical demonstrations, sometimes just offering advice. Her first couple are Marilyn Jess and Cyril Val (couple 1).
She is then asked to visit an older couple (Norbert Ciret and Gillian Gill, couple 2) who have simulated sex with Gill on top after Norbert buries his head between her very ample breasts. (This scene is omitted from the Italian version viewed - that with the stolen title Condominio erotico.)
Then Mélina is visited by a sex toy salesman who apparently uses flashing as a sales technique. It must work as she tries out a dildo on herself in his presence while fellating him. In Damien's absence she takes him on a visit to Mandarine and her niece (Linda Dull). He gives the practical demonstration this time after the aunt and niece have made use of one of his products.
Next to be visited (back with Damien) are Nicole Segaud, who has rung up in tears, and Richard Lemieuvre, (couple 3)
The next 'patients' are Guy Royer and his two girlfriends (Nadine Roussial and Kate Bretty) who have rung up Melina as a joke. He is hardly in need of a sex therapist.
Then a moustachioed male (Claude Franck) and his wife (Sandra) are visited. Mélina watches them have sex on the kitchen floor. (couple 4)
Marilyn Jess makes a second appearance, in a black wig. She is having problems with husband Jack Gateau - to do with the tassles they both have stuck to (pinching) their nipples, but don't ask me to explain the problem. (In effect couple 5, but not listed as such in Le Dictionnaire.)
Then couple 2 (Ciret and Gill) ask for further help and want Mélina to deflower their (presumed) daughter (Virginie, Elodie Delage). This Mélina does with a strap-on.
Finally we see two legionnaires lure her into their clutches and Jean-Pierre Armand does the dishonours while his colleague holds a knife to Damien's throat.
Film information updated with help from Dictionnaire des films français pornographiques et érotiques 16 et 35 mm.