Music from 'Second Sight'

In the episode "Parasomnia", Part 5 titled "A Chance Meeting", Clive Owen is visiting Mark's Club. There is a song playing is the background. Does anyone know who the artist is or the song?

I don't know if it's available, but it's a near copy of the theme music in 'Chinatown,' starring Jack Nicholson. That soundtrack is/was available; I have it.