Two tired cliches are that sex destroys friendships and that men and women can never really be friends and no-one chronicled these two sayings better than Eric Rohmer who made it his life's work to explore the psychological battles that we call courtship. In doing so he became, perhaps, the cinema's greatest director of women. Let's forget for a moment that he divided his films into series, (Six Moral Tales, for example, of which "La Collectionneuse" is one), and concentrate on the film at hand.
"La Collectionneuse" is very simple and very straightforward. Two male friends spend a summer sharing a villa in the south of France. There is another occupant, a slightly younger woman who sleeps around and it is she the men christen the collector since she 'collects' men wherever she goes. They, of course, consider themselves moral but they are also intellectuals and perhaps womanisers, too. They want to collect the girl; they want the girl to collect them.
Like all of Rohmer's best work this is a film of talk rather than action. Rohmer doesn't film love scenes or sex scenes; once his male and female characters enter the bedroom he loses interest. It's the chase and not the catch he cares about and whether men and women really can be friends as well as lovers. He takes his subjects seriously but he also likes to have fun at their expense and like so many of his films "La Collectionneuse" will have you chuckling if not exactly laughing out loud.
In his later films it was usually the women who took the lead but here it is Adrien, (a superb Patrick Bauchau), who acts as our narrator, guiding us through the moral maze but then all three players are excellent. This may be a minor Rohmer film but minor only in the way a short story is considered minor when compared to a novel. Personally I think "La Collectionneuse" is a Rohmer crying out for your collection.