Lieutenant Ville Somero investigates a sabotage at a fortress site on the Karelian Isthmus in the summer of 1939. His suspicions are directed at the guests of a nearby guesthouse. Aarno Teräs an engineer leading the fortification site, and his bride Birgit Lahti get into trouble because of a band of spies and dancer Veronica Sorrento.
as Ville Somero
as Veronica Sorrento
as Kausalainen
as Aarno Teräs
as Birgit Lahti
as Ms. Lindström
as Suhonen
as Mrs. Berg
as Maximov
as Tuomi
as Limppunaama
as Karvonen
