In a modern city strained by cycles of violence and fear, a man lives with an inherited instinct: an uncanny ability to sense serial killers, anticipate their patterns, and find them before they strike again. For years, he uses that instinct to hunt those who prey on others, killing them with a precision that feels less like choice than inevitability. He does not see himself as a hero, nor does he seek forgiveness. He believes violence is a force that can only be interrupted by something equally decisive.Watching the city from another angle is Mara, a quiet analyst whose work is not to catch killers, but to understand how harm spreads-and how it sometimes doesn't. Where others look for causes and culprits, she studies timing, pressure, delay, and the subtle ways systems either escalate violence or allow it to dissipate on its own.As the city begins to change, something unexpected happens: the man's instinct grows less certain. Patterns fail to harden. Moments that once demanded intervention soften and dissolve without bloodshed. At the same time, Mara realizes that the most dangerous impulse may not be violence itself, but the belief that someone must always step forward to stop it.Gradually, without declarations or victories, the role of the "killer of killers" becomes unnecessary. Not because evil is defeated, but because the conditions that once required a singular, brutal solution no longer hold. Violence still exists, but it loses momentum, narrative power, and the ability to summon saviors or monsters.The Killer of Killers is a psychological and philosophical novel about instinct, restraint, and the hidden cost of certainty. It asks what happens when a system stops demanding heroes-and whether the most durable form of safety is not control, but the willingness to leave space where violence once ruled.