Walking confusingly down the lane, disturbed by something. 
Hears noise, looks back to see shadow stalking; begins to panic. 
Moving faster down lane, running now, breathing heavily. 
Clearly disturbed by something, the actor in the trailer is trying to escape the stalker, whom is trying to kill him. General diegetic sounds are present here, such as footsteps and breathing.
After some text, the next shot shows a motionless body; static is present. 
Further diegetic sound ensues, causing the actor to look back and see the antagonist. This causes panic and makes him run, with much heavier breathing as he is trying much harder to escape.
Camera suddenly moves, turns towards the antagonist, showing his face. 
Between title cuts, the actor is pictured to still be running and in a major panic, trying to escape from who/what is stalking or chasing him. All of this occurs while he is self filming, creating a 'found footage' feel.
After some time looking into the camera, it suddenly shuts off and goes to static. 
The actor that was once shown running is now motionless on the floor. In this scene, non-diegetic sounds begin to play to create more meaning in the situation. The antagonist's legs are now visible from the camera on the floor (sideways).
The camera moves to reveal the antagonist (just before the trailer ends). This is to show the audience the scare-factor of the film, and to increase its effectiveness.
Showing the same shot from the previous scene, the camera begins to fade out and turn to static. Once it turns off, the title screen is revealed, showing 'The Hoodie' in distorted and faded text.