Captain Phoebus de Chateaupers returns home after years of war to find Paris in a state of fear, with the girl he was supposed to marry horribly slain. By order of the highest official and driven by a vow of vengeance, he sets out to dispose of the demon prowling the city at night.
But as the decorated Captain and his loyal cyborg-squire venture into the ever-growing mystery, the creatures known only from legend and the facade of Notre Dame awaken. The line between monster and man blurs as there is more to this demon than Phoebus was led to believe. The true terror haunting Paris may just be closer to home.