I think you're talking about "Only You" by Portishead which has a video that is exactly as you describe. I can't find a viewable version of it on YouTube unfortunately though. It looks like there's some kind of copyright issue on the video, maybe if you're in a different country from me (I'm in the US) you'll be able to view it.
Here's the video I found that I can't view:
And here's just the music:
|