Thriller Concept (Individual)

For my concept idea of a thriller I need to think about the location, how many actors the idea would need and I need to keep in mind that I am only on a low budget with simple technology.

Idea One - Entrapment
An abstract montage of flashing images and short actions. The idea is based on the opening to Seven but could have elements of Phone Booth by using establishing shots of building from a low angle to create a feeling of entrapment. I could edit the shots to look burnt and old while using overlays on the establishing shots to make the building seem fierce. All the small spaces and tall building would hopefully put across a metaphor of Entrapment.

(Screen shots from the film Phone Booth to give an example of what angles and shot sizes I hope to be using for the establishing shot)

Idea Two - 
Idea two will be less abstract more realistic. The more realistic feel should make it easy for the for the viewer to relate to the film making it seem real, as though what is seen could happen to them. So obviously as this is meant to be more realistic showing hundreds of different, overly edited clips might distract the viewer from the point and have the wrong effect. What could be a good idea to add realism would be to have the camera at eye level and do the main shots as a point of view (P.O.V) mixed in with a few establishing shots and titles. My idea is to have someone walk through a crowd of people in a ordinary street. Having the camera film their point of view I planned on having the title and credits stuck to the walls along the street.

The best example of what I want to achieve comes from the opening cutscene of the game Dead Island only without the zombies (They've been over used recently).