In the dark sewers of New York, a group of residents begins to mysteriously disappear. The tension escalates when a photographer and his girlfriend, along with a police detective, become embroiled in a dark secret lurking beneath the city. As they investigate, they uncover that a government experiment has dramatically failed, giving rise to cannibalistic creatures that devour the unsuspecting souls who cross their path.
The situation becomes increasingly desperate: bodies pile up and panic grips the community. As the characters seek to unravel the truth, they face the harsh reality that the government is trying to cover up its own scandal. With a chilling atmosphere of despair, our protagonists are forced to fight not only for their own survival but also for that of those who still remain above ground.
As the plot deepens, horror unleashes; the creatures, horrifying and hungry, emerge from the shadows, leaving a trail of chaos in their wake. The film blends elements of horror and social satire, reflecting the urban fears of the 1980s, all while the creatures seem to symbolize the neglect of those living in poverty and the lack of attention from authorities. In this struggle for life, no one is safe, and the secrets lurking in the depths of the city are about to come to light.