Everyone says he is incorrigible... Little Robert is an only child who has everything, he needed to be responsible for something, to take care of something. At least that's what the roommate of the apartment building where Robert lives thought, and sent him a live guinea pig by mail. The guinea pig gets lost in the apartment and Robert, to the amazement of his parents, studies books about animals and is sad that he lost the guinea pig. Imagine the astonishment of his father and his colleagues from the design studio when the father finds the guinea pig in his briefcase...

Thirteen-year-old Vendula dozes off at school and dreams about her parents riding in a carriage dressed in their wedding clothes. The young teacher is angry with the girl who has already failed a year, and has no idea that she is looking after three younger half-brothers. They all have a different father and their mother comes home noisy and drunk every day, often accompanied by a man...

Based on a real event - the shooting of a group of working-class children on 20 April 1930 in Radotín. Thirteen-year-old Boženka‘s mother works as a laundress, and Boženka and her two younger siblings are not living on a bed of roses.

There was a school. And one day, a parrot named Bořivoj came to the school and got all the A's for himself. The children - the pupils - can't just leave it like that, so Eva and Petr set off to the mysterious exotic land of parrots. Climbing, repeating old truths, chasing grades without regard to real knowledge and understanding - simply parroting - that's what the authors try to denounce in this musical comedy with humorous exaggeration.

A group of children are investigating a chain of mysterious events during the seventies.