1) The document is a script for a short film called "Hellion" about a teenage boy named Thomas who hears voices in his head.
2) At school, Thomas is bullied by another boy named Adrian. The next day, Thomas finds out that Adrian has died, though the cause is unclear.
3) Thomas continues to hear the mysterious voice, which implies that Thomas was somehow responsible for both Adrian's death and the death of his own father in the past. The voice also says it can never leave Thomas's head.