On a peaceful farm far from the cities, a brutal murder occurs: someone shot an entire family with a gun. The local police have no leads, and a special investigative team from Stockholm is involved in the case. Suddenly it turns out that the crime had a witness: a little girl who managed to hide and then run away in an unknown direction. Is she alive? And if so, where is he hiding? These questions will have to be answered by the brilliant police psychologist Sebastian Bergman. And he will have to hurry: the criminal is also out hunting...