Idea developed

I went to find locations today, i first went to a graveyard where i had a brain storm and came up with an idea, i also took some still shots on where i may be positioning the actors. The trailer/film will be about the undead and not zombies, the undead won't be rotten as it would be easier for me to achieve the make-up as trying to make the skin look rotten would be very difficult or it wouldnt look very effective. The trailer will possibly start with a girl running or looking frantically around with the voice over of her having an arguement with her mum. It will have a sped up scene of the sun going down to show that the monsters only come out at night, there will be fast clips of the monsters running, or slowly creeping behind trees or gravestones. With some of the stones being Angels, they have the ability to change the monsters back to what they were, and if i decide to show this then i will have their clothes nice and clean and an angelic look upon them as they were once good teenagers but they were tempted and became part of the rest of the damned. I like the idea of the angel being able to change them back to being normal, but showing them changing and leaving the idea of them permanently good or resort back to their horrible state. Also having a few clips of their old past and what happened.