Steffi Yagmetti

At the girls' school, the young teacher requests the young women to prepare a lecture on the topic "The Preliminaries", for next week, before the year's end. The girls would contact him if they had any problems with their work. Thus a series of sexual experiments start, which will involve the whole class, and even the teacher.

A photographer falls in love with a nymphomaniac model. But also his assistant Olga also has kept an eye on him. Soon he has to decide between the two women.