Zatykač na královnu(1974)

Captain Záruba investigates after an anonymous tip flags the seemingly extravagant lifestyle of Chemotex technician Dagmar Králová. Summoned to discuss the matter, Králová’s quarrel with engineer Vaněček, who secretly runs a suburban bootleg alcohol factory, triggers panic among the illicit network led by hotelier Černý. When Králová is found dead near the site of a murdered hitchhiker, autopsy reveals a different killer, launching parallel murder investigations. Forensic teams uncover the clandestine distillery, and gradually piece together motives and perpetrators behind both deaths.