Horror House of the Supergirl

So I was thinking, it's halloween soon and with halloween comes a lot of horror movies. In said movies we usually see some monster or human do horrible stuff to people.

What if the "monster" was a supergirl? She kidnaps a lot of bad people and take them to a secret location she has created. There she uses her powers to scare the victims into shambling messes or maybe even kill them depending on her mood.

Depending on her powers she can do all kinds of fun stuff.
Super speed can be used to create messages in blood to suddenly appear.
Telepathy can make people see creepy stuff that aren't there and "possess" people.
Super strength to knock down doors and walls so the victims can't feel safe anywhere.
Invisibility + intangibility to pretend to be a ghost. Combine this with super strength and she can throw people/things around and they'll think it's a poltergeist.
Invulnerability to create the unkillable monster feeling.
Etc, etc.

Just a little idea I had during halloween. Take it or leave it, I'm going back to being a douchebag lurker <.<

For what it's worth, I had some of those very same thoughts in mind when I wrote DDI Part 31 (LINK) and its subsequent Part 32.