My Initla Story Idea

My film is based around the issue, domestic violence. Young 13-year old Casey feels lonely at home as her mother had passed away three years ago. She lives with her 41-year old alcoholic father, Rob and her 18-year old aggressive sister Donna. Donna was in a young detention centre and has been released with a tag. The sister had turned into gang related actions and work to provide money for her family but has now got too involved and has become violence. She beats her young sister Casey to do jobs for her. Casey feels alone as she struggles at school and her father has no acknowledgement of what is going on in the house.