Two young boys are learning to play violin and getting ready to participate in a great music competition.
| Actor | Role |
|---|---|
 Marc TaimanovYanka Malevich | Yanka Malevich |
 Borya VasilyevVladek Korsak | Vladek Korsak |
 Vladimir GardinProf. Malevich | Prof. Malevich |
 Lyudmila ShabalinaJenya | Jenya |
 Aleksandr LarikovKorsak | Korsak |
 Aleksandr MelnikovGuide | Guide |
| EErna MashkevichMother at the concert | Mother at the concert |