I checked behind each shelf that contained the snuff film archives, but found nothing. I went and sat down on the basement stairs. Maybe what I was looking for wasn't something tangible. Maybe it was supernatural.
I noticed a water heater in the back corner of the basement that I hadn't paid attention to before. There weren't any pipes running to it, so I figured it must be an unused one that they just didn't bother to remove.
I went over to it, looking at the panel screwed to the front that contained the heating element.
The screws were loose.