This book is deeply rooted in the reality of 1970s West Germany.The rise of the Baader-Meinhof group and their copycats(2nd June Movement,for example)in the early 1970s led to an atmosphere of panic fed by media excesses.
Boll detested the German equivalent of the tabloid press,especially "Bild Zeitung",thinly diguised in the novel as "The News".Here he satirises and condemns the press coverage of a woman who,innocently,had contact with a terrorist suspect.The familiar rigmarole of leaks to the press by policemen with an axe to grind,distortions and flat-out lies by journalists,and the destruction of Katharina Blum's life are well depicted."Blum" means "flower" in English-the symbolism is more obvious in German than in English.
The end comes as no suprise after we see how irresponsible journalists and policemen ruin Ms.Blum's life.The book is even more relevant today than in the 1970s,after Bush The Second's declaration of the war on terror in 2001.Boll points out that institutions that are supposed to protect individuals from the state(an independent media and an apolitical police force,for example)can sometimes be the worst enemy of the citizenry.
Great book,and don't forget to check out the Volker Schlondorff film of the same name,now available on DVD.