CRIME
Is a city dweller exposed to more violent crime than a country person? Yes, according to Geoffrey West in his book ‘Scale’, Penguin Press 2017. The incidence of crime, instead of doubling for a place with twice the population, it increases by 15% more. Thus a city of 2 millions, compared with a town of 2,000 has not 1000 times more crime, the same per capita, but 1000^1.15 =  2818 times more crime. City living is much more dangerous. He claims this scaling relationship applies within nations worldwide and that the construction of bland high-rise apartment complexes has often bred alienation and crime.
The political crime fiction novel Presumed Dead illustrates violent crime in a metropolis.