After starting learning in a technical school a young student Sergey Berendeev proves to everybody that he's a real inventor.
Sergey Obrazov
as Sergey Berendeev
Евгений Евстигнеев
as otets Berendeeva
Алексей Смирнов
as Artur Bragin
Лев Дуров
as Kopylov
Борис Иванов
as Papakhanov
Алексей Миронов
as Pavel Ivanovich
Леонид Каневский
as Nachalnik militsii
