Presentation of Thriller Ideas for Coursework

My initial idea:

My initial idea stemmed from the fear of the unknown, it started out as an exploration of human condition for the acceptance of innocence and the way in which people respond to innocence.

It originated with a man driving a car down a dark, usually bustling road, that was lined on both sides with cars with the driver dead in the front seat. The car driver continues down the road and sees the silhouette of a child. He is extremely scared, and thinks the child is in danger. He stops his car and waves the child over to his car. The child approaches slowly, as the child comes nearer it is evident that his pyjamas are covered in blood and that in his left hand he is hold a knife. The driver says something that is unaudible to the camera, the child simply replys with one line of speech "My mommy told me not to talk to strangers, The people in the cars didn't listen to thier mommies". The driver gets extremely scared and puts his car in gear, he looks up from the gear box and looks into the reer-view mirror. In the reer-view mirror is the child sitting in the back seat. The screen goes black. And the childs voice says "You didn't listen.. Did you?".

Props & Location
Location - It would be shot in its entirity, on a large suburben street.
Props & Cast - A car, A knife, A child, A middle aged man, Extra's in cars.