Two broke actors are employed as private detectives to protect the young woman Ewa, who is on her way to Paris to sell a valuable piece of jewellery.
| Actor | Role |
|---|---|
 Åke SöderblomInge Kraft | Inge Kraft |
 Egon LarssonPelle Piehl | Pelle Piehl |
 ElisavetaEva Wahlberg | Eva Wahlberg |
 Ingrid ThulinLilly Fridh | Lilly Fridh |
 Nils KihlbergMarco Curzio Carlsson | Marco Curzio Carlsson |
 Håkan WestergrenFridh | Fridh |
 Torsten LilliecronaBill | Bill |
 John BotvidVilhelm Blomgren | Vilhelm Blomgren |
 Mary RappBritta Wesslén | Britta Wesslén |
 Ragna Nyblomung dam på tåget | ung dam på tåget |