Pavel Hanuš

Hubert Hrabe, known as Smart Boy, is a Prague dandy who is always skirting the edge of the law. Like every likable rogue, he has a worthy adversary - Police Inspector Mourek, who has long been trying in vain to put him behind bars. However, this defender of justice, who is constantly trying to outsmart his "own" criminal, ends up becoming the victim of his own zeal while hunting forgers that are as good as any in Europe, as Hubert the Smart Boy, sets a trap for Mourek

A telephone mechanic secretly pursues his passion for hunting, deceiving his wife and enlisting friends to cover for him. After a successful hunt, he mistakenly climbs onto the wrong balcony and is apprehended by police, but his disguise prevents identification, leading everyone, including his wife and friends, to deny it’s him.

Taxi driver Koukal (Miroslav Machácek) is stopped by the police for a routine traffic check. In the boot of his car the police find the body of a naked man. Koukal is arrested even though he claims he knows nothing about it. The case is assigned to Major Mlynár (Milan Sandhaus). The police identify the corpse as that of an Austrian citizen called Mitrik. Koukal has been regularly driving people interested in gambling to a secret gaming den. The police are put onto the gambling den by another taxi driver, who admits that he drove Mitrik there. Mlynár and officer cadet Pecka (Ivan Vyskocil) feign interest in gambling and visit the gaming den incognito.