Charles-Henri Sanson reigns as the head of a family of executioners. His dreams of a world without execution have faded as the legacy of House Sanson takes precedence. His younger sister Marie-Joseph, stationed at the office of Versailles, lives free—unshackled by the precepts of society, jeopardizes the sanctity of that legacy. Following the death of her first love, Alain, she sets herself on a crimson-soaked path of vengeance and will stop at nothing to expose the murderer and overthrow the unjust system that cost him his life.