Torment (also known as Frenzy) was based on Ingmar Bergman's first screenplay and was directed by another great Swedish director, Alf Sjoberg. The film charts the relationship between sensitive school boy Jan-Erik (Alf Kjellin), his sadistic overbearing school master nicknamed Caligula (Stig Jarrel), and his older girlfriend Bertha (Mai Zetterling). Jan-Erik discovers that he is not the only man Bertha is seeing, is being stalked and harassed by a mysterious older man.