All that I can remember of this dream after forgetting most of it after failing to record it earlier, is that it was clearly inspired by the IT movies & it involved a possible It-like entity who could possibly possess / manipulate people, and this assumed entity was scarier than It in my opinion.
This assumed entity was in a certain unknown town, like in the IT movies, a group of young people had faced it once, but now it was many years later where they were somewhat old & had left the town; but in the dream they returned to the town to visit it.