About the life of the student, Bo Dahlin. Bo's parents are divorced. Both have been unfaithful. Bo is engaged to Kerstin, but only has eyes for Anita. Anita is filled with self-disgust.
| Actor | Role |
|---|---|
 Eva DahlbeckSusanna Dahlin | Susanna Dahlin |
 Harriet AnderssonAnita | Anita |
 Bibi AnderssonKerstin | Kerstin |
 Björn BjelfvenstamBo Dahlin | Bo Dahlin |
 Jarl KulleErnst Farell | Ernst Farell |
 Olof WidgrenHans Dahlin | Hans Dahlin |
 Aino TaubeKerstin's mother | Kerstin's mother |
 Hugo BjörneJacobi | Jacobi |
 Jan-Olof StrandbergClaes Berg | Claes Berg |
 Märta ArbinMrs Johansson | Mrs Johansson |
 Jullan KindahlAlma | Alma |
| JJohnny JohanssonSven Dahlin | Sven Dahlin |
 Nancy DalundeEva Farell | Eva Farell |
| GGöran LundquistSad school boy | Sad school boy |
 Kristina AdolphsonStudent | Student |
 Mona MalmStudent | Student |
 Lena SöderblomStudent | Student |
 Claes-Håkan WestergrenStudent | Student |
 Olle JohanssonStudent | Student |
| LLeif HedbergStudent | Student |
 Mona AnderssonStudent | Student |
| LLeif HallbergStudent | Student |
 Ernst BrunmanJanitor | Janitor |
 Svenerik PerzonPolice | Police |
| WWiveka AlexanderssonGuest at cafe | Guest at cafe |