Hannibal lecter was a smart brilliant rich man. He had met will Graham and loved him. He basically had a gay crush on him. It was very obsessive.

Little did he know will had a little girl. That was YOU. He didn't know that and it was more of a secret. You were only ten. And had autism. So you were a very brilliant little girl. And you were timid that was your whole thing. Being a shy little girl.

today will was at work today and mom (Molly) was at work. And Hannibal didn't know will wasn't home. So he was heading over there and got to the front door and knocked.