Příště budeme chytřejší, staroušku!

Mr. Novak tells a lie to his neighbor Mrs. Bartackova that her husband is unfaithful to her and that is how it all started.

Alois, manager of a remote mountain inn, loses his maid when she can’t stand his oversized Saint Bernard, Bohouš. When a ravenous guest arrives, Alois makes a wager: if the guest can out-eat Bohouš in one sitting, they earn a free week’s stay; if not, they must serve as the inn’s maid for a week.

For the Novák and Bartáček families, money is king, and they'll do just about anything to get it. While René Novák pitches his parents a lucrative scheme to swindle as many people with the last name Novák in the country as possible, the Bartáček clan decides to pretend to be much poorer than they really are in order to siphon some dollars from an American relative. And it doesn't take long before these separate scams start to intertwine.

To the intolerant and bloody-minded Prague actor Bergner (Milos Kopecký) is the lead in Moliere's Misanthrope which he is studying now as tailor-made. On top of that he is malicious and he advises to the new actress Helenka (Dagmar Havlová) in such a way that she upsets the theatre director. If Bergner accuses somebody of a mischief and he is wrong, he never apologizes. When he almost crashes an older elegant lady by his car on the zebra crossing, instead of an apology he calls her an old ballet dancer... But in Brno's TV he takes part in a discussion on manners and he gives himself as an example of good manners and grace. In the train he meets a magic old man (Ladislav Pesek) who warns him and admonishes him to change his behavior. After he arrives to Prague the old man's threat comes true.

Láda Pitras (Ludek Sobota) and Oto Vacák (Petr Nározný) founded in the company Pragokov a Research department of recruitment of labor. For recruitment of workers in professions sought after both recruiters worked out an effective, often almost illegal methods. They followed secretly for instance the welder Niederle and managed to record his lovesick courting to his colleague Anicka. The fear of his jealous wife made him to join Pragokov.

In the forest near the village of Drahovice, a nurse from the local health center is found murdered. Three months ago, another young woman died nearby and a sexual motive was proved in the case of her murder. In the case of the nurse, the motives are not so clear. Two criminologists from Prague - Major Kalas (Rudolf Hrusínský) and Lieutenant Varga (Radoslav Brzobohatý) - patiently collect all available leads and question the villagers.

A car deliberately runs down a young man on a road by a small border town. The locals recognize the dead man as one of the students who were there on volunteer work some time before. The police detectives, Major Kalas (Rudolf Hrusínský) and Lieutenant Varga (Radoslav Brzobohatý) can then get on the trail of the people with whom the victim was involved, especially at the photographic studio headed by Bohuslav Pacer (Bohus Záhorský).

Two seriously injured patients are brought to the hospital at almost the same time: truck driver Honza Linhart, who had an accident, and a young woman found unconscious in a forest by a man picking mushrooms. The woman is identified as Katerina Marková, the divorced mother of a young girl. Major Kalas (Rudolf Hrusínský) suspects that she is a victim of mugging since a bloodstained small ax has been found near the site of the crime and, according to witnesses, Ms Marková was missing her watch and a bracelet, from which a gemstone has also been discovered. Linhart has lost his only kidney in the accident; in order to live a normal life again, he will need a kidney transplant from the mugged woman if she dies.

Major Kalas from the Prague criminal intelligence service has been sent to a small town of Dubá in North Bohemia to help with the investigation of the puzzling death of a child. A gypsy boy has been killed three weeks ago and his body found under a rock. As the investigation continues, another dead boy is found. The boy has bled to death after someone cut his artery with a handsaw. Both deaths are obviously the work of a murderer - a perverted pedophile, sadist who gets sexual satisfaction from the sight of a young boy's blood.

Dana Martinová, a young woman of loose morals, dies at the hands of a mentally unstable young man, Pavel Zach. In a fit of jealousy, he could not restrain himself and killed the girl with a blow to the head. The police find the corpse thanks to Dana's friend Eva Simonova. And it's Eva who becomes Pavel's second victim. The young man, afraid of being found out, attacks the girl and drowns her in the bathtub. Lieutenant Zeman, a criminal investigator, is put in charge of the double murder as his first case, assisted by his more experienced colleague Suchánek. However, the investigation initially goes nowhere. While Pavel's father tries to have his mentally ill son committed to a psychiatric hospital, Pavel commits another murder out of fear. Neither he nor the investigators know that Pavel has been a mere tool in the hands of someone else for some time...

Marta (Jana Brejchová) and Viktor (Vlastimil Brodský) celebrate the tenth anniversary of their wedding half-heartedly. They both think they don't suit together. While visiting Marta's friend Alena (Iva Janzurová), who just got married for the third time, they learn an interesting thing. It was a computer which selected a husband for Alena and she claims she is happy. The couple gets off after certain hesitation to a cybernetic institute, where the computer tells them that living together is a risk for them. At the same time the computer selects them ideal partners - Mrs Tuchlová, a doctor for Viktor, and Petr Karát, a music composer for Marta. By a coincidence Viktor and Marta meet wrong people.

Tomáš, an unscrupulous Prague taxi driver who is involved in stealing antiques and smuggling them abroad, lives with his devoted mistress, but he is always thinking of his destined love, Kamila, who has emigrated to Switzerland. It is for her that he plans a robbery of a rare stamp, which he convinces his naive brothers to commit. The seemingly simple theft goes wrong and almost ends in the death of an innocent man. The planned escape across the border, in which a slick Swiss businessman plays a key role, also fails...

A dedicated biologist, Dr. Petr Gabriel accidentally kills a child in a hit-and-run and, fearing the ruin of his career, hides the body and shifts blame onto two intruders. His new acquaintance Olga and investigator Major Válek grow suspicious as Petr’s fabricated evidence unravels, plunging him into increasingly desperate mistakes.