Season 4

01 Episode 1 Episode 17th January 1973 A man collapses in Beethovenstrasse. His murderer flees. The dead man, a private detective from New York, was on the trail of an international blackmail ring. Supported by customs investigator Kressin, Sandy, the dead man's partner, takes over the case. He manages to sneak into the blackmail ring. But the turbulence of the Cologne carnival makes the case more and more confusing, inscrutable and ultimately ends in a dark, bloody nightmare. 02 Episode 2 Episode 24th February 1973 03 Episode 3 Episode 34th March 1973 04 Episode 4 Episode 41st April 1973 05 Episode 5 Episode 513th May 1973 06 Episode 6 Episode 624th June 1973 07 Kressin and the two jade ladies Episode 78th July 1973 Having just arrived by plane from Istanbul, Kressin is waiting at the baggage carousel, keeping an eye on the charming Asian woman Lyn, who was sitting next to him on the plane. Instead of his suitcase, a corpse is wheeled up, and Lyn has suddenly disappeared. Since 350,000 marks were found on the dead man, Kressin searches for the murderer in the smuggling world and stumbles upon two chess pieces that cause a stir. 08 Episode 8 Episode 819th August 1973 09 Episode 9 Episode 930th September 1973 10 Episode 10 Episode 1011th November 1973 11 Episode 11 Episode 119th December 1973