Stones of immortality. Seven mysterious diamonds from an ancient Asian legend. Is there really a grain of truth in the legend? The scientist who discovered the first of the diamonds in Mongolia was killed, and the treasure he found was hunted by criminal gangs from the USA, Russia, Germany, England, Latin America... Where are the rest of the stones? And what fate will befall their owners - next on the list of criminal “hunters of immortality”? Information leaks onto the Internet bit by bit - and among other things, it suddenly turns out that somewhere in the Siberian outback an old hunter gave a family heirloom, a mysterious diamond of an unusual cut, to a modest young female paramedic...