Prosím, pane profesore!

Pharmacist Pavlovský has a modern and sporty son, Karel, also a pharmacist, whom he would like to marry. He therefore sends him to Kutná Hora to live with his friend Řep, who has a daughter of marriageable age. However, Miroslava is a girl strictly led by her conservative parents and therefore lacks any charm. Karel also meets his uncle Ambrož in the family, who lives a double life. He is a serious older man by day and secretly flees at night so that he can perform in the local theater.

On the coast of Yugoslavia lives fisherman Ivo Kralj, his wife Marie, son Vuk, and Ivo's mother in one happy home. Marie, who loves her husband and always looks forward to his return from sea, attracts Nikola, with whom Ivo, out of jealousy, has a scuffle at a dance. After the outbreak of World War I Ivo is mobilized. He ends up in a P.O.W. camp where he is subjected to hard labour. His family then receives news of his death. The years pass and the lonely widow Marie is occasionally visited by her friend Nikola. Ivo's mother would like her to remarry. Soon after the wedding Marie becomes pregnant. Ivo, who has been thought dead, succeeds in escaping the P.O.W. camp where he has spent several years. Upon his arrival home he finds his name on a memorial erected to the victims of the war...

The musical clowns Rik and Rak, father Švamberk and his daughter Zdeňka, are struggling miserably on the pilgrimage. Zdeňka reveals to the old clown Tom that her father grew up in the nearby Lípov castle, but his father disinherited it because of his marriage to a comedian. On Tom's advice, Zdeňka sends her grandfather a promotional photo of herself asking to meet him. She is indeed invited to the castle, but because her grandfather thinks she is a man based on the clothes in the photo, Zdeňka has to continue acting as a grandson...

Orphaned Zdeňka Štěpánová helps her foster parents in Moravia at an inn. One day she learns that she is to be taken in by the owner of a toy factory, Miloš Kavan, who will fulfill her father's last wish. At the same time that Kavan and his housekeeper Mrs. Julie are expecting Zdeňka, their caretaker's little niece Hanička arrives. Mrs. Julie initially considers her her protégé, because she has no idea that Zdeňka is already a grown-up girl...

One of the few European films of the 30s to criticize the Nazis, even if they couldn't be directly named due to censorship: Gangsters with gray hats stir up trouble in what is obviously the Sudetenland.

Pavel Hora offers his friend Jiří Pulpán a place to live. When they get home, they find out that the landlord has evicted Pavel to the yard because he found a love letter from his daughter Zuzanka. So the two men arrange an apartment in the yard. When the landlord catches Jiří with his other daughter Pepička, he sends both daughters to his brother Sylvester on the farm.

Wealthy and ill Petr Kornel (Karel Hasler) is not pleased with the carousing lifestyle of his nephew. He stops supporting him financially and demands that he change his name. Out of gratitude Kornel bequeaths a substantial sum of money to his nurse Alice (Adina Mandlová) with the condition that she marries. Petr Suk (Hugo Haas), as the nephew is now named, visits the doctor. In the waiting room his X-ray is mistakenly switched with one of another patient's. On the basis of this he presently learns that he is seriously ill and has only one day of life left to him.

Vincenc Babočka, an insignificant employee of the police station, plays detective in private, convinced of his exceptional abilities. However, a vacation in Karlovy Vary unexpectedly gives him the opportunity to prove what he is really capable of. He is mistakenly considered to be the international adventurer Leon Weber, who is being pursued by the police. He decides to take advantage of the confusion and expose Weber's accomplices, who are planning to steal diamonds belonging to the Maharaja of Yohir. According to Weber's plan, he meets the Maharaja disguised as General Naryshkin, but everything only works out until the real Weber appears in town...

Mirko, bored with his extravagant life, decides to spend his vacation alone, far from the company of his Prague friends. He even makes a bet with a friend that he will go a month without any funds, luxuries, a car and...without a kiss.

Country tailor Florian Svíčička neglects his work because of his interest in medieval history. When preparing an amateur performance at Zdislavice Castle, he gladly replaces the bailiff and plays the role of a knight. However, he ruins the performance and is shamefully banished. On his way home, he witnesses a horrific scene in the forest: two knights behead a young girl. It later turns out that it was a filming, and the girl Hana, a double for the famous diva Elvíra, spends the night with Florian at the castle because the filmmakers accidentally leave her. The master loses patience with Florian's excesses and Florian is fired from the tailoring shop. He sets off for Prague to find the girl he was with at the castle the night before. However, he does not know her name and accidentally comes to Elvíra's villa. The diva is not at home. Florian finds a love letter in the villa and thinks it is addressed to him. However, upon his return, Elvíra mercilessly throws Florian out...

Jana's beautiful niece arrives in Prague to live with two spinster aunts. Both women wish to marry her off. The son of the court councilor Petr is courting her. However, Jana has met a young official Záviš and the two fall in love. But Záviš is poor and cannot marry yet. They keep it a secret from Jana that he composes songs. Coincidentally, Petr is his friend and both men talk about the girls they love, unaware that in both cases it is Jana...

A dashing but mysterious man saves a gambler from suicide, crashes the posh party of a prominent industrialist, falls in love with his daughter, and finds himself in a web of intrigue revolving around her blackmailing fiance and a gang of counterfeiters.