Школьное проклятие

Rita's former classmates are dying one by one, and the girl is very afraid that she will be the next. The Ivanovs find out that a curse is hanging over the guys, of which they themselves are guilty. Clairvoyants will have to find out all the terrible secrets of the cursed school and its former students. Meanwhile, the Ivanov family itself is facing school problems. Katya can't cope with geometry and decides to summon the spirit of Pythagoras to solve the control for her. But Pythagoras is not as simple as it seems to a cunning student from the twenty-first century...