The Girl from The Window

That window was her only key to the outside world.
After the death of her mother her father hated her more.
She was abused and neglected by the man who was supposed to be her father.
Acting as the mother her little brother deserved to have, she took the pain for him.
What happens when a stranger appears in her window, and communicates with her?
Will her and her brother get the freedom they deserve?
Or will a more sinister future await them both?