1977 film by Jürgen Enz

El joven sociólogo Bernd se prepara para su tesis doctoral: "¿Por qué las mujeres se vuelven extrañas?", Y Birgit, con quien se casó recientemente, le ayuda.

When you're as pretty as Iris, choose an analysis of the love market as your doctoral thesis and also want to gain practical experience, you have to expect to get involved in delicate and not always entirely safe, but at least amusing situations. And since Iris can't manage all these love adventures alone, she enlists her circle of friends to help her with her research...

During a high school trip, a hostel landlady stops the girls' teasing only to force herself on their teacher. A small stage play turns weird by backstage shenanigans. A vice cop tries stopping a lusty bogus priest on the beach.