Happy Death Day: I Have Awaken

Jimmy is back to school. Evan after Sierra's death he feels fine. But does he really? he is connected with his friends again, going back to his first university, what could go wrong? He gets strange dreams, Sierra was still alive. Then at the end of his dreams he hears her voice. Then he goes straight back to where she was killed and then him at the funeral when he saw her eyes open. Then back to reality. Is he going insane or is Sierra's spirit trying to tell him something?