Based on the novel of the same name by Grigory Svirsky. 1942 year. The Great Patriotic War. The navigator Bratnov was shot down during the war, was captured, fled, returned to his people, was demoted and sent to serve in the construction battalion. His old front-line comrade Major Kabarov accidentally met him and took him to his unit. Kabanov, knowing about the lack of experienced navigators, is seeking to transfer Bratnov to his air force in the Northern Fleet, in the Arctic, to a tiny rocky island — "to the ends of the world."

Beth Tyson is murdered in her mansion. Chief Inspector Fields, Inspector Bramell and Detective Philbert present three different versions of this crime.

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...

Things take an interesting turn for Tanya and her mother when her father arrives with his foster son Kolya and new wife. This film is about Kolya and Tanya's bright, pure and bitter first love.