Anastasia has been living with guilt for many years. She is sure that twenty-five years ago (albeit without knowing it) she sent her loved one to death for the sake of a meaningless trinket. Over the years, the feeling of guilt only grows stronger, and the pain becomes stronger. Lately, Anastasia has been sleeping very poorly, and, as she assures herself, it is insomnia that is the reason why strange things begin to happen to her on the subway. At some point, the exhausted woman is ready to believe that the past can still be corrected. But reality, the same one that is given to us in sensations, presents her with an unexpected surprise...