A young designer is tormented by remorse after a viaduct of his design collapses.

Marta Lipińska
Hanka
Stanisław Niwiński
Grzegorz Hulewicz

Aleksander Fogiel
Bień

Wiktor Grotowicz
Rozner

Witold Pyrkosz
Witold Roszak
Edmund Fetting
Rowicki

Zbigniew Dobrzyński
Tomasz

Zdzisław Maklakiewicz
Kotarski

Antonina Girycz
Ewa

Janusz Kłosiński
Nowak

Eliasz Kuziemski
Bień's Defender

Zofia Merle
Zosia

Leon Niemczyk
Prosecutor
Marian Nowicki
Ignacy Skoczek

Zbigniew Sawan
Hanka's Father