Abusive Father

This is not out of experience, this is just me making up a story.
Joanna is the only child, whose living with her father who killed her mother right in front of Joanna. Her father told her if Joanna told anyone he'd do the same to her, so Joanna and her father lied and said that she had fallen down the stairs and unfortunately the cops believed them, oddly they believed such a horrible lie. This is the journey of Joanna's struggle of living with her very abusive father