Kustav and Andri decide to quit smoking and swearing. Tibu, however, has already become a changed man - Irma turned him into a real man. And now, Iris realizes she wants Pauli back. But first, they must exorcise the evil spirit of Irma from Pauli. The school is the last in the country in terms of academic performance, and the management conducts inspections in the dormitory to ensure that the youth are not engaging in immoral activities instead of studying. However, they have to deal with the dormitory caretaker Salme during the inspection.