The book tells about real events that happened to real people. However, without documents and confirmed evidence, it would be hard to believe that this is even possible.History breaks stereotypes, due to the dramatic intensity, nothing like this has been offered to the reader's attention in recent decades.A well-known businessman, An art collector accidentally makes an outstanding discovery: a self-portrait of the Bloody Jeweler, the mystical Benvenuto Cellini, falls into his hands. A painting that disappeared from public view 450 years ago.The action takes place in modern France, a country full of contradictions, as well as in London, New York, Moscow and Italy. The book contains an accurate description of the secret negotiations at the highest level, as well as the confrontation between the intelligence of several states. The businessman falls under the ruthless pressure of the special services, is subjected to provocations, blackmail and pressure. His mistress turns out to be an officer of the French counterintelligence DSRI. The secret services take the collector for a representative of some influential forces and groups, they develop completely inadequate efforts in an attempt to unravel the mystery that does not exist.Benvenuto's contemporaries (1500–1571) gave the famous Jeweler, sculptor and murderer the nickname "Diabolo". The life of this man is full of such adventures that they did not end even with his death.