A balmy summer night. The stillness is broken when a Jewish neuroscientist is found strung up by his feet above a grave in Stockholm. Meanwhile, a car is waiting outside a refugee facility in Vresta with the engine running. A few minutes later, a risky escape to a distant destination begins. The following morning a zookeeper makes a macabre discovery in the wolverine enclosure at Skansen, and the leads slowly start to take shape. The summer has started badly for the A-group. The cold winds of change are blowing through the corridors of National CID and somewhere out in Europe evil lies in wait for inspector Arto Söderstedt.