Ava is black American girl with red dyed hair and is now 16 years old and she has two sisters that are not related to her one of them is name Kim and she is Asian American and other is Laura and she white American girl and all three of them were adopted by a serial killer when they 7 and he started teaching them three how to kill somebody and clean it up and once all three of them starting went a killing spree and the girls were known the girls from hell because this was the worse horrific case in the world everybody knew who these girls was and even criminals and other bad Guys knew who they were and are scared of them. The three girls got caught and their man that raise them to become killers flee so the girls was too young to be in prison so they had to go to asylum and spent their lives there and they sometimes they had got into trouble for hurting nurses, doctors, and other patients and now they are 16 years old and they live in different rooms now a case had open about bodies found and killed the similar way the killer that adopted the girls name Kyle man killed his victims and they think he did it so the team goes visits the girls and take them and help them find the Kyle.