Vladimír Peroutka

Eva's aunt is jealous of her neighbor's excellent roses and wants to know the secret. To help auntie out Eva applies for secretarial work at the neighbor's house in order to find out the formula. Things get complicated when it turns out that Eva's brother is in love with the daughter of the house and also wants to get in there under false pretenses.

An elderly rich lady, Hyacinta Horáková, is leaving for a spa. She entrusts her terrier Bobík to her sister-in-law Ludmila and her daughter Marcela, who live in her villa. The dog mysteriously disappears before long and there is no choice but to publish an advertisement promising a reward. In the newspaper's administration, advertising artist Ludvík Zoubek notices Marcela. He would like to please the girl who has charmed him and starts looking for the dog...