Why were the doctors in the Lolita's flashback so utterly useless? When a patient is clearly a danger to herself and in severe need of mental help allowing her to wear the same clothes all the time is not a smart idea. Nor is the lack of medication. Not to mention how did nobody realize that she is actually the older brother? Did they not even give her a basic medical look over? She had been in a dangerous situation, clearly physically injured and they didn't even notice she was male? If they had done that they would have figured out that she's extremely dangerous before she caused anymore harm. Also, how did the police not work out that the corpse was of an eleven-year-old girl and not a fifteen-year-old boy?
Actually thatīs not it. The ending does not show she was a boy but the actual murderer. She is (probably) not a human girl and every time she kills an older brother and all his family, the crimes are charged unto said older brother. Thatīs what the flashbacks show, not that she is a he. The doctors are still useless thought.