It's basically an AU were Carrie becomes insane because she wanted to get revenge on the person who murdered her parents. When she thought she saw them, she accidentally killed her younger sister, Tyler instead. But she actually felt… good. It was like an adrenaline rush for her. So, in order for her to try and fix getting over the loss of her parents, she killed… more and more each time. Mr Fun Computer, Black, even her ex boyfriend, Xavier… she loved how this killing felt, she wanted- no, NEEDED More…she can’t help it… she can’t stop. She won't stop…