Synopsis for opening sequence

Synopsises are the general plot of movies which don't contain spoilers to the possible end to the movie like the twists, which are typically used in psychological thrillers.
An example of this is from the psychological thriller Se7en (1995):

David Foyer
Taking place in a nameless city, Se7en follows the story of two homicide detectives tracking down a sadistic serial killer who chooses his victims according to the seven deadly sins. Brad Pitt stars as Detective David Mills, a hopeful but naive rookie who finds himself partnered with veteran Detective William Somerset (Morgan Freeman). Together they trace the killers every step, witnessing the aftermath of his horrific crimes one by one as the victims pile up in rapid succession, all the while moving closer to a gruesome fate neither of them could have predicted.

This gives a short introduction to the film so as to entice the possible viewer into watching it.

This is my draft synopsis for our coursework.
The sequence begins with a rowdy sixth form class room with a teacher slightly unable to control the class. The focus is of a group of students at the back of the room talking. Somehow they get on to the topic of their greatest fears. The camera would then track backwards from the conversation to a suspicious figure who with some form of gesture picks up on this, creating an enigma.

Next the protagonist blacks out for an unknown reason as this happens it fades to black and the titles begin to appear on screen.

The protagonist will then awake suddenly to find the room empty and trashed with tables upended and possibly fallen panels in the ceiling. The protagonist would leave the room, the camera would face down a hallway with nothing at the end. The protagonist would walk in front of the camera then passed, with the camera in focusing down the hallway to reveal the figure of the protagonists' worst fear which had previously not been there. The camera would wait around 5 seconds for the audience to see this and then it would fade to black.

Some themes that i have incorporated into this synopsis is the waking of a person to find empty world, from 28 days later, and the theme of a antagonist that can in a way move really fast or teleport with in a blink of an eye from the movie, The Tall Man. hopefully we can create this without it bordering into horror and can keep it thriller.