We always have those who yearn nostalgically for the good old days. Barely one hundred and fifty years ago, if you wanted to go out at night, in almost any large city in the world, you would be well advised to hire an armed escort - so you see, we may be getting a return of those 'good old days' sooner than most people think. On that particular theme, two young men stand in a doorway in a dark and deserted street. They hear approaching footsteps, and lie in wait for him...