please..

OK, this is what I believe happened, and I am quite certain this is right, or at least the most accurtae of the interpretations on here, I hope this clears some things up:

The doctor was living next door to her when she was young and being raped/molested by her father, whether she wanted to be a boy at the time, the main gilr was lying etc. is irrelevent in the rest of the story, what is important is only that you know the cop was made to believe it was a boy that lived there, and that he died in the fire. They became lovers (more or less)and would entice men, and then brutally murder them, as a way to get back at the male gender due to the horrible way she was treated by her father. I think the first murder was her father, thats why they had the head in the freezer of the "work room" and the body being preserved in that house. The body parts were what linked everything, especially the victims together. Someone said earlier on that the drawings of his head was meant to "explicitly symbolize" that he was going to get his head cut off, i think this is really far off base. I think it was just a matter of admiration, he was the only man that seemed to show genuine care/concern for her, he trusted her, which in the end is what saved him. The little boy who was killed, was just a way to get detective Oh to the crime scene as well as tie other things together, there was no major relevance in it though. The things that cause most confusion seems to be what thell her doctor/friend was doing with the blood, and why she went to the record store. I think what it was, was that she was intentionally going to take the fall for her lover, the blood was a victims, it was neither hers, nor the main girls. So she was going to go to the record store and make it look like it was her and she was going to pretend to try to kill her friend, because her love and care for her was so strong.