<human>: Condense the text into a few key points

I've lived in my condo for about 2 and a half years and never really encountered any problems with this woman (about 55-60 years old, I'm 30), but was made aware my a now ex-neighbor that this woman had many run-ins with the girl who previously lived in my condo. According to her, the cops were called on more than one occasion.

Anyway, since August, she's deliberately dropping something quite heavy on her floor (my ceiling) at all hours of the night (ranging from 10pm-8:30am). Just last week, she was doing it at 1:45am. The best part is, when she does it, she comes down, knocks on my door and blames me for it while I just incessantly tell her how crazy she is.

Finally, last night it happened again around 11:30, came down to my door and blamed me again while I told her how insane she is. Then, for the first time, she called the cops ON ME for me making too much noise. In all honesty, I really don't think I could be a quieter person. So the cops showed up at friggen 3:30am and ask for my side of the story. Blah blah blah, just doesn't appear to clean up the mess... at all.

So I'm just perplexed as to what I can do to get this shit to stop. I can't even get a decent night of sleep without this psycho doing this shit anymore. I really think this is her way of interacting with people since I never see her with any friends or family at her house.

Anyone have any ideas on a good next step?
<bot>: I have a crazy upstairs neighbor who makes a buttload of noise, blames me for it and then calls the cops on me (did last night, anyway).