Set in the grim backdrop of 14th-century France during the Black Plague, the story follows a disillusioned knight named Thomas who encounters a mysterious young girl, Delphine, claiming to have visions from angels. Together, they embark on a perilous journey across a ravaged landscape, facing demonic forces and moral dilemmas as they seek to fulfill a divine mission that could alter the fate of humanity. As they navigate the chaos and despair of a world teetering between good and evil, their bond deepens, revealing themes of redemption, faith, and the enduring struggle for hope amidst darkness.