A murder without a motive? For the inspectors Max Ballauf and Freddy Schenk unimaginable. And yet the murder of the 48-year-old senior physician Hermann Johns seems completely unfounded. The renowned physician, who worked in the maternity ward of a Cologne clinic, seems to have been popular with patients and hospital staff alike. Does the murder have anything to do with the mysterious deaths that made headlines in the hospital's maternity ward a few weeks ago? Could one of the bereaved want revenge? Apparently, John was poisoned with a drug from the hospital's inventory. This makes almost all employees who had access to the medicine cabinet suspect.
Ballauf, who has a natural aversion to hospitals, retires to the headquarters for the extensive interrogations of the hospital staff. However, when Schenk moves into the clinic as a nurse, he quickly realizes that wondrous things are happening in this isolated little world. A microcosm that seems to follow its own laws. Between the cleaning service and serving food, he comes into close contact with patients and clinic staff and their very different fates. But there seems to be no place for sympathy and sadness. Good and evil, which becomes all too clear in this case of the Cologne investigative duo, are sometimes very close together.