Antwerp is in turmoil: the impregnable diamond mecca has been broken into. The whole world demands answers. Who would be so bold as to pull off the "heist of the century"? Amidst the agitated clients of the Diamond Center, there stands Leonardo Notarbartolo. Depending on who you ask, he's either a modest Italian jeweler, or the greatest thief in the world.

While Leonardo strikes a secret deal with the shady lawyer John Lovegrove, the chief of the Diamond Police, Albert Mertens, follows a new lead involving someone inside the Diamond Center.