Marking screams disturb the sleep of the Schmitz family. Klaus ' Daughter Daniela is very excited: Someone ran the street at a fast pace. Klaus and son-in-law Jens, who has recently tried himself as a hobby detective, search the terrain and discover that the walls in the living room of the neighboring house are splashed with blood. A new case for the „ Rentnercops ". Forensic doctor Dr. Lara Krüger suspects a knife attack based on the splashes. The strange thing: there are no signs of burglary in Henrike Schmitt's house that is not there, and no body either.
However, there are dozens of boxes of kraft crystals in the basement and we write Friday the 13th. Are supernatural powers at work here? Klaus ' Ms. Francesca is convinced of this, who recently communicates with her late father at Séancen, who clearly indicates that she married the wrong man. Klaus is annoyed. Witch Diana, the owner of the crystals, is interviewed by Bielefelder and Vicky Adam. She sold Henrike's mother Katharina the crystals to cure her cancer. Hui Ko finds out that she died and no longer took any medication because of the crystals. Meanwhile, the escaped stranger appears in a hospital with cuts, but before Dr. If Krüger can hear this, he disappears.