Captain Roman Markowski is a sailor. One day, after returning from the sea, his ex-wife calls him. It turns out that their son has disappeared. It also turns out that the boy got to the Maritime School. The captain's life gets complicated when his son suffers a serious accident.
| Actor | Role |
|---|---|
 Roman WilhelmiCaptain Roman Markowski | Captain Roman Markowski |
 Teresa Budzisz-KrzyżanowskaTeresa | Teresa |
 Małgorzata Wiśniewska-NiemirskaBarbara | Barbara |
 Ewa SzykulskaIrena | Irena |
 Henryk TalarRyszard Kalewik | Ryszard Kalewik |
 Jerzy BińczyckiCaptain Piotr Zaremba | Captain Piotr Zaremba |
 Leon NiemczykBarański | Barański |
 Lech SołubaKarolak | Karolak |
 Teodor GenderaMarczak | Marczak |
 Jerzy KaraszkiewiczGładysz | Gładysz |
 Zygmunt KęstowiczChairman | Chairman |
 Zdzisław KozieńRecruiter | Recruiter |
| JJanusz KubikRobert | Robert |
 Krystyna Lubicz-LisowskaMarkowski's Mother | Markowski's Mother |
| AAntoni SzubarczykMarkowski's Father | Markowski's Father |
| KKazimierz ŁastawieckiPsychiatrist | Psychiatrist |
| TTadeusz ZielińskiYoung Sailor | Young Sailor |
 Janusz BukowskiSailor (uncredited) | Sailor (uncredited) |
 Zbigniew KuźmińskiShip Doctor (uncredited) | Ship Doctor (uncredited) |