Jan-Erik Widgren meets with a woman fighting with alcoholism, the Bertha Olsson. She begins a romance with all the boy though Bertha is already linked to Caligula, the heartless educator of Jan-Erik. He begins to kiss his pupil emotionally when Caligula learns that Jan-Erik is having a affair with Bertha. He reserves his cruelest behavior for Bertha which results in a horrible turn of events.