The famous author Mark Storm's publisher is unhappy with his books and asks him to write books in a more popular genre, crime for example. When Mark Storm comes to his apartment, he finds a burglar, Kurre. He notices that they have a physical similarity and they change identity, which makes it possible for Storm to make empirical studies in the world of crime.
Edvin Adolphson
as Mark Storm / Kurret
Anne-Margrethe Björlin
as Elsa Selling
Naemi Briese
as Carmen
Carl Hagman
as major Stålhammar
Carl-Gunnar Wingård
as ingenjör Berglund
Åke Claesson
as bokförläggaren
Marianne Löfgren
as fröken Nyström
Hilding Gavle
as Svenska Akademiens sekreterare
Ragnar Widestedt
as fjällhotellets direktör
Agda Helin
as majorskan