On February 15, 2003, a group of thieves broke into an allegedly airtight vault in the international diamond capital of Antwerp, Belgium and made off with over $108 million dollars worth of diamonds and other valuables. They did so without tripping an alarm or injuring a single guard in the process. The police zeroed in on a band of professional thieves fronted by Leonardo Notarbartolo. The who of the crime had been answered, but the how remained largely a mystery. Tracking the threads of the story throughout Europe from Belgium to Italy, in seedy cafes and sleek diamond offices the authors sorted through an array of conflicting details, divergent opinions and incongruous theories to put together the puzzle of what happened that Valentine s Day weekend."