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.
| Release Date | April 5, 1974 | |
|---|---|---|
| Status | Released | |
| Original Title | Zatykač na královnu | |
| Runtime | — | |
| Budget | — | |
| Revenue | — | |
| Language | Czech | |
| Original Language | Czech | |
| Production Countries | Czechoslovakia | |
| Production Companies | Filmové studio Barrandov | |