A serial killer dispassionately discusses the nuts and bolts of his grisly avocation, as well as the youthful traumas which helped to mold him into a psychopath, in this disturbing independent drama from Germany, based on the true story of of Germany's most famous child murderer Juergen Bartsch who, between the ages of 15 and 19, abused, tortured and killed four schoolboys in the Ruhr region of Germany from 1962 to 1966.

The daughter of a famous writer believes her mother is responsible for her father's death. Since then the relationship between them is cooled increasingly, to the point that she did not invite her mother when she marries. The husband, far from promoting good relations between them, takes them away even more, which sees the mother and begins to suspect him when he receives a note threatening to kill his daughter.

The action takes place in Moscow, Berlin and Vienna in years 1932 and 1933, a time when the great Bulgarian revolutionary and internationalist Georgi Dimitrov was actively involved in establishing a broad alliance of democratic forces against the emerging threat of war and fascism.