Sören Mårtensson is a middle school teacher. His classroom occupied by half-grown children. His work is tormenting him and at night he is haunted by nightmares.

Per Oscarsson
as Sören Mårtensson

Ann-Marie Gyllenspetz
as Anne-Marie

Kerstin Tidelius
as Gunvor Mårtensson

Bengt Ekerot
as Eriksson

Catti Edfeldt
as Jane

Harriet Forssell
as Mrs. Berg

Per Sjöstrand
as Headmaster

Georg Oddner
as Georg, the photographer

Bo Malmqvist
as Bengt