A photographer learns to knife fight to avenge the murder of a young prostitute he has befriended. The prostitute had gained possession of a computer disc containing a drug ring&#8217;s data. The teacher of the photographer's teacher is the murder. When asked why he cut up the young girl&#8217;s face the murder&#8217;s reply was something like &#8220;You are an artist, you sign your work don&#8217;t you?&#8221; What is the name of the movie and who is the actor that plays the part of the photographer&#8217;s teacher?