Tanja Bulkova arrives in Finland under the name Toini Salonen and, with the help of spy chief Rosenberg, becomes the secretary of engineer Rautavuori and discovers the drawings of a secret invention.
Toini Pulkkinen alias Tanja Bulkova alias Miss Smith alias Toini Salonen
insinööri Rautavuori
Laaksonen
Toini Pulkkinen alias Tanja Bulkova alias Miss Smith alias Toini Salonen
insinööri Rautavuori
Laaksonen
