The French police Kanhina Zadi and the prosecutor Anders Harnesk looking desperately for connection between the bestial murder of Frenchman Pierre Carnot and the helicopter pilots Kambo. On the bullentin board in a deal happen Anders see a note with the murdered Kambos name and the number 20. Evn a not with Carnot's name and the number 21 is found.Shocked realize Anders and Kahina that this is just the beginning.