Trash Gremlins

From publisher blurb: Demons are pilfering the garbage and leaving a huge mess! Stop this disgusting menace! A pack of dretches slipped into the material plane and nested in a vacant apartment floor. Relieved of their duties in the eternal war by a stroke of luck, they've been picking through garbage in a nearby alley for food and getting into fights amongst themselves, inciting noise complaints from the nearby city folk. A wealthy noble wants to capture the demons for study.