A hot case for Franz Baumgartner. Fire! And where the hell is Baumgartner? A house is burning in a village in southern Styria. Meanwhile, the whole family is at the wedding of their son. However, the bedridden grandmother perishes in the flames. The circumstances are mysterious: a serious electrical fire? Or is it arson? The Graz criminal police take over the investigation - but there is no trace of the lead inspector Baumgartner. Not even his colleagues know where he is, leaving them in a bind when speaking to the press. So, Gregor Wolf takes on the case and quickly uncovers evidence pointing to a crime. Apparently, the Egger family has many enemies - and they are clearly trying to hide something from the investigators. Then, suddenly, Baumgartner reappears - in a more than dire state... Tense suspense.