The heroes of everyday life have long been forgotten and the waves of viral infection have also calmed down in Europe. Yet, the Corona lie still occupies many of those who firmly believe that this pandemic was planned by those who profited from it, such as the couple Carsten and Lisa Köpping, both medical practitioners. They are now to be exposed and made to pay with a devastating explosion - at least that is the intention of conspiracy theorist Felix Morgenroth, who is trying by all means to expose the "Corona lie". He and his entourage are targeted by the public prosecutor's office and Anton Mehringer is shocked to find that Sarah Kohr apparently maintains a consensual relationship with these criminals and may be willing to kill for their ideas. Has she left the path of the righteous policewoman and opted for some kind of vigilante justice because she has fallen for the conspiracy slogans? Now, of all times, when Mehringer's appointment as chief public prosecutor is imminent, his best investigator is slipping from his grasp...