Marc Singer spent two years making this stark, black and white documentary, abandoning the surface world to join a community surviving in home-made shacks pieced together from salvage, in tunnels connected to the New York subway.
Dark Days suggests these subterraneans represent a more enterprising type of bum than those who stay above ground. However, there are obvious privations and dangers, and a shack-dweller who insists he doesn't feel homelace is told to face facts.
Yet there's a happy ending of sorts, as a potentially dreadful confrontation with the zero-tolerant railway company is sideswiped by legal action that gets the dark dwellers rehoused in modest apartments that, after mucho footage shot with swarming rats in the background, seem like palaces.