In an unnamed Latin American country after a coup d'état, a military junta comes to power. The army deployed to the streets, the civilian population is exposed to hard terror. A wave of arrests follows, some former senators - liberals and communists - are sent to prison. Some patriots that have gone underground try to figure a plan for their release. They buy a small shop opposite the prison in the name of Francisco and Maria Vardes. From its basement they plan to build a 90-meter tunnel. Three years of enormous effort, deaths and nervous breakdowns are not spent in vain.
Bolshevik Tsolak Darbinyan is infiltrated into Dashnak Army as a musician of Army music band. Despite the initial personal conflict with band leader Arsen, he is able to win the friendship of young band musicians including Arsen and to persuade them to back him on the eve of the Bolshevik invasion to Armenia.
Musician Stefan meets a young attractive woman Lidia. Stefan is going on tour to Austria, and Lydia, "accidentally" remembering her Viennese acquaintance, asks to give her a souvenir from Moldova. In Vienna, Stefan is met by people who are well aware of his private life and even familiar with his diary. The musician begins to suspect something is wrong, but when his daughter's well-being is threatened, Stefan becomes truly worried...
