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.
It is the future, the world is in ruins and a large portion of the population consists of deformed mutants living in reservations. In this world a man decides to spend his vacation visiting the ruins of a museum that is now buried under the sea.
In this drama with socio-political nuances, a heroic engineer is able to save the passengers on his train from injury or death by sacrificing his own life when his locomotive crashes. An investigator Ermakov and journalist Malinin are both involved in the story of the crash but from two different angles: the investigator wants to find out why it happened, the journalist wants to laud the heroism of the dead engineer.
