A dead Indian is fished from the Ilm. It's about Wolfgang Weber, who owned the western town of El Doroda. Weimar commissioners Kira Dorn and Lessing learned from his managing director Heinz Knapps that Weber wanted to terminate the tenants of the western town. Did the hobbyists have a lynch party in their desperation? While Kira investigates undercover in El Doroda and proves that a real cowgirl slumbers in her, Lessing comes across the ice-cold civil engineering contractor Ellen Kircher. She has been spreading fear and horror in the western town from her depraved son Nick since she dug a geothermal well in the sand there, for which Weber did not want to pay. But the violent death of a young bison and an attack on Heinz Knapps indicate that there is a deeper secret behind the murder of the Indian.