Max Normandin wrote: lacking something in terms of emotional impact.
Without seeing exactly what values exist, and if the original media source is robust enough to sustain some creative luminance transfer adjustments, my first instinct would be to see where some curves would take me. Flat, low light, limited gamut... these are not encouraging. How much detail do you need to keep at the toe/bottom end? Can you crush the bottom without clipping those values, and can you add some "pop" to the mids by pulling up on the luminance curve at some strategic point? Can you create a quasi-"rim" by qualifying some of the brighter parts of the shot (if they exist) and pushing in some kind of chromatic cue, like a blue (night) or amber/yellow (street) feeling? You're the painter.
jPo