Your sitting alone at home, reading a book. You here a car door outside and keys rustling. The front door opens, it's Ace, your boyfriend. Ace is an FBI agent, he's investigating a serial killer.

He locks the door again, and starts to take off his shoes. "Im home babe." He says, in his deep, cold voice.

The serial killer he's investigating... She has killed her parents. You had a bad relationship with your parents, and now don't have any.

Who is this killer...?