Miss Nováková reports to Major Tuma (Karel Höger) from the police about the disappearance of her roommate, the model Zuzana. Shortly afterwards, a film director named Konrád (Otomar Krejca) asks Tuma to cooperate on a new cinéma-vérité film describing the story of Zuzana's disappearance.

major VB Miloš Tůma
kapitán Líbal
režisér Konrád
fotograf Laufr
hlídač Jan Vávra
hluchoněmý rybář Lebeda
vrátný Bedřich Rýdl
Maruška Nováková
vrchní Josef