British film-maker Marc Singer spent two years underground shooting his remarkable debut feature, a compassionate documentary about the inhabitants of the Amtrak tunnel network beneath New York's Pennsylvania Station. With his monochrome imagery evoking Depression-era photojournalism, Singer makes an important distinction between homeless and hopeless, as he captures the ingenious ways his articulate subjects survive in their subterranean world. Yet there is also genuine pain in the frank discussion of the way in which drugs robbed some of life, if not hope. Less convincing, however, is the "happy ending", when the Amtrakers are resettled in above-ground accommodation, which feels more like a victory for conformity over individualism than social justice.

A cinematic portrait of the homeless population who live permanently in the underground tunnels of New York City.