Latin teacher Birger Sjögren at Ringsala boarding school threatens his possesive and chronically ill mother that he will get married. She gets a stroke and dies. Sjögren is affected by feelings of guilt, envy and hatred towards the surroundings. A series of mysterious fires have taken place around the school the last few months. One of the students has seen Sjögren setting fire to a barn. But can he convince the trusted biology teacher Nordmark, expert of the criminal mind?
| Sound | Jules Sylvain | Original Music Composer |
| Art | Arthur Spjuth | Production Design |
| Camera | Hilding Bladh | Director of Photography |
| Writing | Hasse Ekman | Writer |
| Production | Lorens Marmstedt | Producer |
| Directing | Hasse Ekman | Director |
| Sound | Lars Nordberg | Sound |
