4x1 - Dead pigeon in Beethovenstreet

January 7, 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.

4x2 - Episode 2

February 4, 1973

4x3 - Episode 3

March 4, 1973

4x4 - Episode 4

April 1, 1973

4x5 - Episode 5

May 13, 1973

4x7 - Episode 7

July 8, 1973

4x8 - Episode 8

August 19, 1973

4x9 - Episode 9

September 30, 1973

4x10 - Episode 10

November 11, 1973

4x11 - Episode 11

December 9, 1973