The Berlin Tatort team Rubin/Karow are investigating a senseless murder of a young University student. The trail of clues appears to be left deliberately by the master-mind perpetrator of "the perfect crime". - This episode reminds of the Hitchcock Classic "Rope", which in turn was based on the sensational Leopold & Loeb murder trial of the 1920's, where privileged young graduate students murdered one of their peers simply for the thrill of getting away with it (which , of course, they didn't).
Many macabre situations in this story give the viewer pause. Is this what it takes to "belong" to an elite club, and should anyone strive for such membership? Hauptkommissar Karow surprises once more with revelations of hidden talents, while his ranking partner Rubin gets the best dialog lines as a police woman who will not be intimidated by arrogant persons of interest. The pair of crime fighters are always worth watching, even if a particular story isn't quite top grade. This one is something for nightmares.