Just before Christmas, things that are difficult to explain happen in the house of the widow of the local organist. Muddy traces left in the house, mysterious shadows and strange sounds make Bogusia increasingly believe that these may be signs from her tragically deceased husband.
The war in Ukraine begins. Ukrainian children from the war are brought to a Russian elementary school. One of them turns out to be the nephew of Wiktoria, a Ukrainian music teacher who hasn't seen him for years.
