Mattes somewhat reluctantly protects Werner Karger, who can't be tried again having been cleared 20 years ago for a girl's murder, against the blind mob raised by his tirelessly vindictive mother Heike Bundschuh, which shouts and vandalizes at the home of his host and youth buddy Peter Martinek, worse the ever since recent DNA evidence probably would have got a conviction. Car sabotage lands Werner in ER, under police protection. Impish bad loser Melanie further provokes precinct boss Haller, wearing out his patience.
—KGF Vissers