Crime writer Rodian moves into a hotel which used to be the hideout for the thief Mathisen and his gang. However, when Rodian has gone to bed and fallen asleep, Mathisen reads the writer's manuscripts and copies the fictional crimes. This gets Rodian in trouble...
Mathisen, ejer af hotel "Skildpadden"
S.P.R.F. Rodian, kriminalforfatter
Stenbeck, Rodians forlægger
Else Jessen, landsretssagfører
Erik Jessen, landsretssagfører
Anna-Lisa, Rodians niece
Kale Karlfeldt, Anna-Lisas forlovede
Viggo Frederiksen
Alfred Mogensen
Tjener 'Stoffer'
Akrobatdanseren
Bartender Christiansen
Nattevagt
Bankkunde
Værtshusgæst