Eva is a very sexual young girl.  Her sister tries to make her a better person by sending her off to a private school 'for moral and aesthetic instruction.'  Fortunately for Eva, this school is more than what it seems.  Everyone there has sex all the time!  Outside and in the halls and classrooms, the students are constantly doing 'extracurricular activities'.  When a lawyer is sent to the school to investigate, he uncovers more than the truth...especially when Eva's own sister comes for a surprise visit!