In the near future, writer Victor Banev gets himself on a UN commission to investigate what's going on in the remote town of Tashlinsk, where reports tell of a virus-created race of brainiac mutants. Banev's tween daughter Ira is enrolled at a school for gifted children which has been taken over by the mutants, who have grown to despise ordinary humanity.
In a world after the nuclear apocalypse a scholar helps a small group of children and adults survive, staying with them in the basement of the former museum of history. In his mind he writes letters to his son — though it is obvious that they will never be read.
When Arthur learns that his daughter has escaped to "battle with the word of vices", he follows her. He firmly believes that anyone can be saved by love. Will a father's love win the battle against fanaticism?