Josef Lachman, once a security officer, serves twelve years for aiding an SS fugitive’s escape. Upon release, he works as a driver on a dam project, hunting buried English pounds Meyer told him about. With miner Rokos’s help, he retrieves the cash and hides it with his daughter Eva, but she spends some at Tuzex, Rokos blackmails him, and they discover the notes are WWII forgeries.

Lieutenant Vasátko is spending Christmas vacation in a mountain cabin where a diverse group of people have gathered. The painter Horác and two married couples, the director Skorkovský and his wife and his new discovery, the not very clever Jájinka and her husband. There is a murder and an unusual denouement.

Four people recount different versions of the story of a man's murder and the rape of his wife.

Sherlock Holmes likes to play violin and expects a great career in music. He gets a place in a spa orchestra, but he is again and again distracted by criminal cases. Therefore he is the only one who does not see that his violin has no future. He solves the criminal mysteries in passing but the final test shows that the famous detective is tone-deaf.

Commissioner Bartošek is visited by Dr. Goldberg, who reports the disappearance of his friend, the famous actor Benda. From the flimsy evidence, it appears that Benda left his apartment one night without taking anything with him and was taken away by car. He had not gone out for the entire week before, had not washed, had not shaved, and had drunk until he was debauched. The police search has reached a dead end. The actor Lebduška reveals to Goldberg that Benda had an affair with the actress Gréta, the wife of a prominent businessman, Bartošek's classmate Korbel. Goldberg eventually manages to exhume an unknown vagrant, whose body was found shortly after Benda's disappearance...

Joseph Sheridan le Fanu's tale, "Inn at the Flying Dragon," brings dark fantasy, ghostly apparitions, and mysteries to the TV screen. It's part of his well-known collection, "The Dark Mirror," published a century ago, yet still captivating readers today. Bohumila Zelenková drew inspiration from this novella, not just for its mysterious and romantic elements but also for the characters' intriguing portrayal of the post-Napoleon era—a time when many sought greatness, even if it meant embracing deception.

Painter Horace visits his friend, a former criminalist, and is intrigued by two strange women who live in the house opposite. The old sisters have lived together their entire lives, quarreling, doing things to each other on purpose, but they cannot be without each other. And then one day both sisters are found dead in their locked apartment. They poisoned themselves with gas. Officially, the case is closed as a suicide. But Horace doesn't think so... Even though his criminalist friend discourages him, he continues his investigation. Were the women murdered? And is Janza involved, or their friend Pesný, who was supposed to live in their apartment?

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A failed mystery writer reflects on his life which in turn affects his encounter with domestic abuse.

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An attack is carried out on the accountant of a research institute, and a large sum of money is stolen. The criminal investigation colonel not only solves the crime but also investigates its motives.