Well, it's awful portraiture. It's an attempt to recreate the old
character portraits of the 30s, 40s, and early 50s. But it belies the
single light principle. There should only be one main light source.

That's not such a great photo, but think I understand what you are
asking. I doubt it was created in photoshop. Basically, the subject is
lit while in a dark room against a dark background. And by controlling
the spill of the lights, the subject is the only thing lit.

I did a self-portrait a few years ago with a similar approach here:

http://www.karlwinkler.com/Philosophy.html

I used two lights (as did the photographer who did the picture in your
link) one main light to my right, and one spot to my left, above and
behind me (to give definition against the dark background). Part of
the key to this kind of approach is to position the lights and use
specific kinds of light modifiers to A) avoid spill to the background
areas, B) light the subject appropriately and C) give enough edge
definition to separate the subject from the background. One of the
best of this style I've seen done recently was a photo of Mickey
Rourke in Rolling Stone magazine a few years ago.

Hope this helps.

-Karl