There was a murder in the English classroom that night. Fortunately, it's not a real one, but a game one: students have to guess the killer in order to get the key to completing the annual quest. The rest of the teachers are also preparing different assignments, although in the end it will still be a test for their nervous system. Some teachers are let down by their knowledge of their own subject, while others are let down by a crazy bitcoin.

Nastya runs into Leonid and for the first time realizes that her grandmother may have a personal life. Coming to terms with this idea is proving to be more difficult than she expected. While the girl is experiencing a new discovery, Natalia anxiously monitors her daughter's condition. Who knows what terrible truth the teenager is hiding from her? It would be worth having a heart-to-heart conversation here, but the mother has her own method.