Stig Jarrel enjoys his moment in the sun as Caligula, the sadistic school teacher who delights in tormenting his pupils, and future director Alf Kjellin's soulful youth in particular. A shame Ingmar Bergman's script spent so little time letting us into Caligula's mind, because it's there that the film comes to frightening, diseased life. Mai Zetterling's damaged waif suffers poignantly from the fallout of Caligula's disintegrating mind.