Stephan Derrick is shot and seriously injured.So Harry Klein will be in charge of the criminal investigation with the help of Jacobsen, a former policeman who knows very the underworld of Munich.Recently a big boss,Korda, has been arrested judged, Harry Klein must find the evidences about the murder attempt against Derrick.It's a very interesting and fascinating episode becauseit's quite difficult to get very good and sure notices of the criminal activities of the underworld.About performances it's the first role of Barbara Wussow as a barmaid.