Jeff the killer film Idea

A new boy (Jeff) is starting college, standing in front of the building he looks up, we can only see his back.
Two girls are stood outside the college when Jeff, accidentally bumps into them, dropping a few of his books, one of the girls bends down to pick them up at the same time as him, she looks at him but he jerks his head away quickly, but she glances his face and is visibly shocked.
A few days later she is with the same friend and they are discussing what she saw, when Jeff walks past them again, and the girl who saw him follows after. She stops him and turns him round, but his head is down. We can only see form the back but she is questioning him, getting more and more agitated with his silence.
That night she is looking at news paper articles and sees something, we see her mouth "Jeff" and it cuts a newspaper article about a teenage boy killing a girl and her parents. as the camera cuts back to her we see Jeff behind her, with entirely blacked out eye sockets, and cuts from the corner of his mouth upwards creating a creepy fake smile. The screen cuts to black and back to his face close up.