95 minutos
After the death of his Russian mother, nine-year-old orphan Peter lives with Professor Hartmann and his daughter Helga, who cares for him like a mother. Peter is very musical. He especially loves the melancholy songs of the Don Cossack Choir, which remind him of his mother. Because the boy has suffered from a severe heart defect since birth, his doctor, Dr. Stark, has forbidden him any excitement, including music. When one day the Don Cossack Choir's tour bus breaks down near Peter's house with engine trouble, the little boy meets the conductor Serge Jaroff and his famous singers in person.
Claus Biederstaedt
Rolf Bender
Paul Hörbiger
Professor Hartmann
Sabine Bethmann
Helga, seine Tochter
Stefan Haar
Peter
Willy Fritsch
Chefarzt Dr. Burger
Gunnar Möller
Dr. Heinz Stark
Serge Jaroff
Himself
Alice Treff
Elisabeth
Hans Richter
Karl
Carla Hagen
Anneliese
Elfie Pertramer
Mutter
Else Reval
Emmy Burg
Bruno W. Pantel
