The City & The City (2009)

Two cities occupy overlapping physical ground, while their inhabitants learn to disregard what belongs to the other jurisdiction. A murder investigation makes this arrangement both a practical obstacle and an unnerving account of trained perception. Miéville gives anyone interested in urban space a memorable question: how much of a place is produced by habits of attention? This is speculative crime fiction, so its buildings and borders serve an invented political system rather than a real-city map.