The Black Circle

Terror strikes Stockholm. A church was blown up. Since Central Station ... No one takes responsibility. The city is under threat. By who? The journalist Johan Nordenskiöld finds a trail that leads to the dark, to the black.

A bomb explodes at Stockholm Central. Kvällstidningsjournalisten Nordenskiöld continues to investigate its own track, which includes a book publisher that publishes national literature.

Journalist Johan Nordenskiöld continues to investigate the links between a nationalist book publisher and a secret foundation. At the same time, he is being persecuted by black-clad men who seem to intend to harm him.

The five terrorists gather to carry out another attack. At the same time, Nordenskiöld has collected material to prove that there is a link between a nationalist book publisher and army officers, but his material is stolen and his home is subjected to burglary.

While Nordenskiöld is unconscious in hospital, Eva Murray tries to find the evidence he has collected. She travels to his island in the archipelago but there is already someone there.