Berlin's Nazi Ripper

S1, E4: It's late 1940 and every Berliner's attention is focused on the success of the Luftwaffe's Blitz on Britain. But a very different kind of attack is happening right under their noses. A serial killer is on the loose, attacking women along the S-Bahn overground rail system. While the Nazi propaganda machine buries the story to protect its image of a pure, idyllic Germany, an SS detective puts his extraordinary skills to work, using early forensic science and psychological profiling methods to nab the murderer before he strikes again.