The Quiet (2013)

When a young, deaf schoolgirl is bullied and left to take the long walk home alone, she realises that she's being followed and a frantic game of cat and mouse begins. growing ever more sinister as it becomes clear that she may never make it home again.

This is based on a true story, about an incident involving a school girl who was stalked by a molester/killer as she walked home alone after a day out with friends.