Stanislavski's system
During the German occupation of Norway the situation at the theatres was characterized by severe nazification attempts from the authorities, and boycott from the public. Strømsted joined the group of actors that started underground meetings where they secretly studied Stanislavski's system. The result of these undercover meetings was the founding of the theatre Studioteatret in 1945. She played for Studioteatret from 1945 to 1949. Among her roles were "Emily" in an adaption of Thornton Wilder's play "Our Town", "Polly" in Weill and Brecht's "The Beggar's Opera", and "Natasja" in Anton Chekhov's "A Marriage Proposal".