Secondary school students play a 'practical joke' on their teacher: on midterms day, they claim she told them the wrong date. She almost believes them, but an honest classmate ruins their fun... and now they want revenge.
Igor Grushko
Mariya Vasilyevna Devyatova
Kaleriya Georgiyevna
Taya Petrova
Oleg Komarovsky
Dasha Rozanova
Karl Sigizmundovich
Semyon Semyonovich
Rufina Andreyevna
Komarovsky's father
Vladimir Valentinovich (swimming coach) (uncredited)
French language teacher
Shurik Korbut
