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Ryszard Malewicz, a young inventor, is out of work. He had been waiting for months for a response from the ministry to which he had sent plans for his invention, an explosive of extraordinary power. Desperate Ryszard is comforted by his mother and his fiancée Maria.
as Ryszard Malewicz, narzeczony Marii
as Maria
as Irma, członkini szajki
as matka Ryszarda
as baron, szef szajki
as "inżynier", członek szajki
as Kwiatek, niemy służący barona, członek szajki