Teaser trailer ideas

For my teaser trailer I'm thinking of making the genre: horror, because I find that it is a fun and fascinating genre to work with. Im thinking of taking the stereotype of the victim and flipping it so that the victim becomes a killer.

I found the criteria for the stereotypical female victim in horror films on this website: http://www.slideshare.net/JessMarston95/stereotypical-characters-in-horror-films

So if this is the typical description of a horror movie victim, what if we flipped the stereotype, and made a stereotypical victim the killer? This is the question I want to ask for my teaser trailer.