I've seen a great deal of documentaries about the infamous serial killer from 1888 England, Jack the Ripper.
Crime stories fascinate me, since they reveal something analytically fragile about social psyche, and Jack the Ripper is among history's more infamous and studied criminals.
Jack the Ripper was a mysterious man who wandered around stalking and coldly murdering numerous women, many of them unwitting prostitutes. He seemed to be a psychotic critic of urban living.
This salon killer reminds me of the intrinsic sociological value of relevant murder-imprinting Hollywood (USA) movies such as "Copycat" (1995).