Brainstorm of First Idea For a Psychological Thriller and Opening

It was important that as a group we both came up with an individual idea, this meaning that our opening is the most effective and best it can be. If only one of us came up with an idea, it wouldn't be that great and would be quite bland, so we both came up with individual ideas and then next time in class we will bring the ideas together and come up with one big idea.

Most of my ideas have helped been produced via the research we collected earlier on, this means that it will be much more effective and will be what our target audience expect. I involved certain elements like an out cast teen because that is what is common in this genre and one of the stock characters our target audience expect. To show that he isn't 'normal' and has some mental issues, I have incorporated a therapist (another stock character expected to see) Fields wasn't something our target audience fully expected, but I feel it could give a twist and would fit very well in where the plot is heading and would be something very different. 
Here is my idea for a possible psychological thriller and opening...