The hero of this story is a former paratrooper who fought in Chechnya. He became a professional killer, a man who solves complex problems. As a result of the consequences of the injury, his face stops aging. And he uses this to his advantage. Appearing on the threshold of his victims' houses as a young, naive man, he lulls their vigilance. Arriving one day to visit a fellow soldier in Italy, he receives his first order. This is how the legend of the sinister killer appeared. Now he faces a new task. He needs not to kill, but to save, to be one step ahead of his opponents and make them believe in his story. He leaves traces, but leaves no witnesses, putting together individual puzzles into a picture, which will be the truth for everyone. Like a lone wolf, he knows neither fear nor pity. And in his wake there are already killers, the police and the one who once snatched him from the clutches of death, but is now ready to destroy him. The enemies have been defeated and rivers of blood have been shed, but there is still a final battle ahead of two real warriors, high in the mountains, near an ancient monastery.