Erroneously 'speed-radar-spotted' in his service car, constable Kai Timmermann finds it 'manned' by skull-smashed, police-contracted Carsten Schweiger, the hard disk was removed. Fresh widow Ariana Schweiger, Kai's ex for years, got Carsten to take her shift, hence may be the intended target, and hides an affair with employer Sascha Grimm, being frustrated by the nasty job. The team also looks into possibly vindictive regular speeders, like local farmer-forester Kai-Uwe Holzer and car freak Tobias Noll, who is one spotting from jail.
—KGF Vissers