Nervenflattern

In Kassel, two tragic accidents occur in quick succession - or at least, it initially seems that way. However, an anonymous letter to the city's mayor raises significant doubts about the randomness of the events - and suddenly, Commissioner Paul Lenz finds himself in the midst of a sensitive case: the Documenta, the world's most important exhibition of contemporary art, is threatened by an attack involving a highly toxic nerve agent. And with it, the residents of the North Hesse metropolis and the numerous exhibition visitors are at risk.