A brilliant scientist who has devoted his entire life to genetic engineering creates a scientific breakthrough - the "Bess" formula, capable of turning ordinary soldiers into invulnerable fighters designed to protect the country and ensure its prosperity. For the sake of a great goal, he sacrifices everything: his personal life, dreams of a family, the right to happiness. From his youth, he knows that he is doomed - an inherited disease slowly destroys him from the inside. But even in the face of death, he does not give up. He falls in love, for the first time for real, deeply... But the disease takes away this too – the beloved disappears, unable to stay close. The dream of a house, the laughter of children and warm hugs remains unrealizable. And yet, on the verge of death, he has a chance - the last few days, full of passions, betrayal, pain and revelations. He is surrounded by spies, friendships crumble, and enemies are ready to do anything to get hold of the formula. But he goes through everything with the courage of a real person. He leaves with dignity. And his death is not the end, but the beginning. He remains in the memory of his beloved woman and in the history of science, as the one who cheated death, as the creator of a technology that can change the fate of the world. He gave mankind not a weapon of destruction, but a shield of protection.