A rash of bizarre murders in New York City seems to point to a group of grotesquely deformed vagrants living in the sewers. A courageous policeman, a photo journalist and his girlfriend, and a nutty bum, who seems to know a lot about the creatures, band together to try and determine what the creatures are and how to stop them.
This movie contains 11 potentially triggering events.
A dog is dragged into a sewer via his leash when his owner is pulled in. Later, we see the dead dog hanging from its leash in a basement, presumably killed by CHUDs. It's bloodied but looks like a bad puppet.
Dripping noises in the sewer, panting and coughing of men struggling to breathe. The soundtrack can also have dense repetitive noises that can bother some viewers.
Yes, a character (who is intended to be delusional or psychotic) is very violent and overall not handled well. Lots of homeless people are portrayed in a bad light in this movie.
Cops aren't really portrayed in a positive manner. The only "good" cop is one of the main characters - the rest of the cops in this movie are shown as corrupt or just bad at their jobs.