Radek Simek, the driver of a postal car, is shot dead on his regular route. The Investigators give up initial suspicions of robbery, because he carried no greater amount of money. Even questioning Honza Marek, another mail car driver, brings no result. When the circumstances are becoming more and more suspicious. Marek decides to track down the killer on his own.

Ce synopsis est en anglais : nous ne l'avons pas encore traduit.