documentary interior photograph of a sealed-off section of abandoned brick sewer tunnel, heavy modern steel bulkhead with a high-security padlock welded across an archway of Victorian-era brickwork, six alcoves carved into the brick at regular intervals each fitted with a heavy forged ring and chain anchored into the masonry, standing water, dripping condensate, iron rungs climbing to a long-forgotten manhole, sickly green-tinged lamp clamped to the wall, 35mm film, claustrophobic damp atmosphere
