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Football referee Jamal Kabir, a refugee from Taliban-controlled Afghanistan, is brutally murdered in an immigrant neighbourhood in Stockholm. The investigators involved in the crime, Hans Rekke, a renowned psychology professor who is incredibly attentive to detail, and Michaela Vargas, a police officer who is a feisty but fair-minded girl, discover suspicious facts from the judge's past that radically change the course of the investigation. It turned out that this man not only loved football, but also worshipped music and dreamed of becoming a world-famous conductor. However, when he realised that he did not have enough talent for this, he became angry with the whole world...