Good-looking Edita Beningerová (Jana Brejchová) arrives at a chemical factory in the North Bohemian town of Ústí nad Labem together with her young assistant Nada (Zlata Adamovská). She is hoping that her ex-husband, outstanding practical chemical engineer Vik Panc (Eduard Cupák), will help her conduct an experiment to validate her proposed theoretical method of isolating cholesterol from lanolin. The success of Edita's invention is crucial for her career at the Prague Institute of Chemistry. Vik's roommate from his hostel Bréta (Ivan Vyskocil) is thrilled. He will finally meet the mysterious and fascinating Edita about whom he has learned so much from Vik.
Eduard Cupák
Ivan Vyskočil
Jana Brejchová
Zlata Adamovská
Zdeněk Blažek
Naďa Konvalinková
Soběslav Sejk
Alois Švehlík
Karel Heřmánek
Vítězslav Jandák
Bohuslav Čáp
Jana Andresíková
Lenka Termerová
Ludmila Vostrčilová
Jana Robenková
Jaroslav Radimecký
Josef Střecha
Jiří Lír
Jan Kotva
Karel Hovorka
Jiří Nebeský
Karel Hábl
Karel Engel
Jan Kanyza