The rebellious socialist Knut is subjected to a mental evaluation after he assaults a stranger on the street. Psychologist looking track Knuts aggression in childhood experiences while Knut himself sees them as a natural reaction to the class society's oppression.
| Actor | Role |
|---|---|
| KKnut PettersenKnut Nilssen | Knut Nilssen |
 Björn GranathBjörn | Björn |
| BBerit PerssonBerit | Berit |
| BBjoern KanvertDir Hedqvist | Dir Hedqvist |
| HHans HellbergAuthor | Author |
| SStig BillbergStig | Stig |
| TTom FahlénPsychiatrist | Psychiatrist |
| BBarbro Printz-BäcklundThe Girl across the courtyard | The Girl across the courtyard |
| SStaffan SethPersonality investigator | Personality investigator |
| AAnita RunePsychologist | Psychologist |
| YYngve BjernstadSuperintendent | Superintendent |
| MMelker FalkmanNot listed | Not listed |