Potential Film Synopsis Idea

A girl and her family move to Houston, Texas from England. Then one night whilst watching T.V. a crazed man, ho has just escaped from a local Mental Health Assylum, breaks into the house and slaughters Hollys family infront of her. He leaves her for dead. The movie is set 10 years after the murders and a nineteen year old Holly discharges herself from a psychiatric ward. The audience follows her pathway to a new life. She has no memory of her past as doctors trialled a new drug which has wiped her slate clean. A few months after her freedom she begins to suffer with flashbacks. Follow the journey of discovery but how will she handle the truth? and will the urge for revenge take over?