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...
Dirch Passer
as Mathisen, ejer af hotel "Skildpadden"
Ole Monty
as S.P.R.F. Rodian, kriminalforfatter
Asbjørn Andersen
as Stenbeck, Rodians forlægger
Marguerite Viby
as Else Jessen, landsretssagfører
Preben Mahrt
as Erik Jessen, landsretssagfører
Bodil Miller
as Anna-Lisa, Rodians niece
Oscar Ljung
as Kale Karlfeldt, Anna-Lisas forlovede
Johannes Marott
as Viggo Frederiksen
Christian Jørgen Nielsen
as Alfred Mogensen
Gunnar Bigum
as Tjener 'Stoffer'
Hans Brenaa
as Akrobatdanseren
Mogens Davidsen
as Bartender Christiansen
