Jessica Jablonski lies dead in her apartment. Apparently, the shopaholic woman died while opening a package. A detonator suggests that it was equipped with an explosive device.

According to the pathology report, Jablonski suffered from a heart defect and may have died of shock. The box contained an information flyer for a psychotherapy practice that treats shopping addiction. Therapist Nadine Stäble rejects any suspicion.

Since no cell phone was found in the victim's apartment, the investigators have it located. It soon becomes clear that neighbor Anja Strom stole the cell phone at the scene of the crime. Hubert and Girwidz follow her. Anja Strom confronts her boyfriend Stefan Zeindl, who apparently had a relationship with the victim. A clear motive. And Zeindl also comes under suspicion – after all, he is a pyrotechnician!

Thanks to Riedl, who is investigating a series of parcel thefts and tracking down the delivery driver, the trail soon leads to another neighbor of the victim. Late riser Frank Kreitmayr apparently felt compelled to accept parcels for Ms. Jablonski every day.