Pianist Eduard Danilevich and the owner of a large corporation, Semyon Donskoy, would never have met if it weren’t for one shared misfortune. It’s unbearable to lie on a hospital bed and tally up the life you’ve lived when you’re just a little over forty! The days are numbered—unless, soon, a donor is found for them… And then—miracle! At the very last moment, they’re told that a donor has been found. The operation goes successfully, and life begins on a clean slate. But then it turns out that fear of death is nothing compared to another nightmare. Eduard and Semyon are horrified to realize that something mysterious is controlling them—something that settled in their bodies after the operation. They decide to find the truth: who was their mysterious donor? Why were the papers in the hospital archive forged? Who is behind the chain of unfortunate events that began together with their investigation? And most importantly: how is any of this connected to the story of the fall of a powerful medieval order of the Knights Templar? And it all began back in 1307…