Chess and Accordion Soundtrack

Several pensioners (from different backgrounds) meet every day at chess field in a park (somewhere in Europe). One of them is Mile. He plays a round of chess with his best friend Halid. The atmosphere is cheerful, until after a few moves a young man approaches Mile. It is his son Nikola, whom Mile has not seen for a long time. Nikola wishes for his father to come home. But where is his home now?