The urn supposedly containing the remains of Alice's grandfather falls out of the window and breaks. To Alice's great surprise, the urn is empty and the girl learns that the grandfather didn't die but disappeared under mysterious circumstances on the 2nd September 1946 in the town of Telc. Her grandmother claims that a mysterious young man with dark glasses was implicated in her husband disappearance. Alice is determined to solve the mystery. Grandmother's story leads Alice to a shoemaker who hands her Professor Jeník's - her grandfather's - invention, called the Force-fields Accelerator. Alice tells her boyfriend Petr about the device and the young man creates a time machine following the professor's instructions. The young couple then travel back to 1946 and there they indeed meet Alice's grandfather, and his daughter Blanka, who will later be Alice's mother.

The Francs with their daughters Olina and Jirina are building a villa in the village of Rezkovice. Father Franc (Vladimír Mensík) doesn't allow himself a minute's respire and restlessly forces to work his wife, both daughters and Zdenek, Jirina's suitor. Zdenek does not protest against it and, in addition, he is skillful. On the contrary, Olina's boyfriend Libor is worse at work. He studies at the Technical College and he does not succeed much in grasping the building handicraft. Franc, proud of his pursuits, decides that he will arrange the wedding for both daughters and then hand them over the key of the villa in which both pairs have luxuriously furnished flats.

A comedy concerning a down on his luck bookshop owner with a penchant for women who decides to make some money by pretending to be a waiter and collecting cash from unsuspecting diners.