The headmaster of a private girls' school is doing her best to maintain strict discipline in the school. In addition to the loosening morals of the students, the warm relationship between two girls is a causing concern.
A man's body is found on Tähtitorninmäki in Helsinki. Palmu starts to investigate the case, but the scandalous newspaper story causes problems for the police.
Marjatta lives in poor conditions in Tampere with her widowed father Arttu who works as a factory worker. Marjatta gets to know engineering student Pauli whose constantly worsening mental health problems and jealousy become a threat to Marjatta and her close circle.