Berlin, 1943: Bruno Lüdke, a young man of the suburbs, is accused of 81 murders. His whole body is an accusation, starting from his face: the “bad guy’s face”, one of a true brutish lout. For the Police of the time there’s no doubt he is guilty. And his name is still associated today to the image of an appalling serial killer. Yet in fact how would one define the “bad guy’s face”? Has this typical criminal’s portrait evolved through the years? Which logics provided the parameters for a “bad guy’s face”?