At the Jammerhalde, a gloomy northern slope in the Palatinate Forest, a gruesome massacre was committed during the Thirty Years' War. It is at this historically significant location that a male corpse is discovered, soon to be followed by more. All victims were killed and mutilated in a bestial manner. After each murder, the perpetrator places a white lily on the memorial stone of the Jammerhalde. What do these macabre arrangements mean? Do the acts have anything to do with an unsolved murder series of a love couple from the 1970s? The search for the brutal serial killer leads Chief Inspector Wolfram Tannenberg to a historical society, where his new love interest, Johanna von Hoheneck, is also a member.