In the seventh case, the duo Alexander "Alex" Haller and Nikolai "Niko" Falk investigate a robbery and murder in which the last photo of Empress Elisabeth of Austria-Hungary from 1898 has disappeared. There is said to be a curse on the photograph showing the naked corpse of the murdered empress. According to this, anyone who looks at the recording should die themselves.

After Charlotte Binder, a descendant of the court photographer at the time, came into possession of the photo plate , her husband Navid Moradi-Binder was stabbed and the photo plate was stolen. Special investigator Alexander Haller and his partner Niko Falk suspect that someone wants to sell the recording on the black market.

The suspects include the art dealer Wolfgang Gansmeir, who deals in kuk memorabilia, and the craftsman Meindl, who had an affair with Charlotte. Further investigations lead to a kuk costume ball.