In the bustling city of New York, a series of mysterious and violent deaths begin to terrorize the residents. The city is gripped with fear as bodies are discovered in a horrifying state, leading the police to initially suspect a serial killer. However, as the investigation deepens, the bizarre nature of the wounds and the eyewitness reports point towards an inconceivable truth – a giant flying creature, resembling the mythical Quetzalcoatl, a winged serpent from Aztec legends, is nesting atop the Chrysler Building, diving down to attack and feed on city dwellers. Skepticism turns to alarm as evidence mounts, and the city's authorities scramble to find a way to stop the creature before it strikes again.

Amidst the chaos, a small-time crook, who dreams of the big score, discovers the creature's lair by accident. Sensing an opportunity for riches and fame, he devises a plan to exploit the situation. He offers to lead the authorities to the creature's nest, but at a price. Meanwhile, a cynical detective and his partner are tasked with unraveling the mystery of the creature's origins and finding a way to kill it before more lives are lost. As the detective delves deeper into the case, he finds himself caught in a web of danger and conspiracy, facing not only the physical threat of the creature but the moral dilemmas posed by the crook's scheme.