Every summer, at an altitude of 2,000 metres, grow the blueberries in the southern part of Macedonia - or as they call it down there ‘the mountain caviar’. Telling the story about Mile from the city of Gevgelija, who believes that Kozhuf Mountain is the best office one could ask for, the film captures the tiring work of the blueberry pickers whose livelihood depends on the annual harvest of these “black perls”.