The movie-almanac consists of three novellas dedicated to the song. "Song-password". Lieutenant Marchenko is sent to the Nazi-occupied city to pass a purse with fuses to the underground scouts through the liaison. The password song helps the scouts to find each other. "Song about the mother." Working in distant Africa, pilots Igor and Victor once recorded on a tape recorder a song about his mother. Soon Igor dies during an epidemic. And Victor, in memory of his friend, gives his mother the tape they recorded. "Song at Dawn". Student Sergei dedicated to his favorite girl Valya composed by him "Song at Dawn". Valya then did not understand Sergei's feelings and married his friend. Sergei leaves. Years pass. Valya's personal life did not go well. And now she often remembers Sergei's sweet song.