A young engineer arrives in a small provincial town and falls in with a traffic police inspector, a driving instructor, and a cannery-engineering manager. From sheer boredom, the inspector tickets a driver who has not broken the regulations. The driving instructor takes advantage of his position to seduce one of his students. To kill time, the engineering manager spends his time intriguing. These passions seem to be all that the three of them live for.

Silviya is an excellent student, favorite of the teachers, but she does not do well in math. Silviya puts a comma in the school journal between the number 1 and 9 in the absences column in order to hide her absence from math class. The school regulation is set; three absences mean an administrative punishment. Two of her innocent classmates are punished, numbers 1 and 9, not number 19, which is Silviya. The teachers trust the "good girl". Silviya feels guilty.She is struggling between right and wrong. She must find the right answer for herself.

The adventures of a mischievous boy in his neighborhood during the summer break.