Who Saw Him Die?

Ole dole doff is a movie starring Per Oscarsson, Ann-Marie Gyllenspetz, and Kerstin Tidelius. A weak and tormented teacher is pushed to the limit by his obnoxious students.
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.