Vera, wife of the plumber Simandl (
Josef Somr), is found murdered in the cinema next to the IDOC (Information and Documentation) agency where she worked. Police captain Marha (
Frantisek Nemec), who is leading the investigation, is informed by Simandl that on the day of the murder Vera promised to bring home fifty thousand crowns to buy a car. Marha's primary suspects are the three men working at the agency: deputy editor-in-chief Brandl (
Jirí Pleskot) and editors Pernata (
Eduard Cupák) and Remes (
Ludek Munzar, and of course also Simandl.
—NFA.cz