just watched this last night and you hit the nail on the head. I thought the same as you but was a bit confused cos he looked like a dummy in the end.

These mental patients long for being in the outside world, but know that in their mental condition they simply cannot be accepted, so the closest thing they have is a window to the outside world.
Or they're exhibiting catatonia which is a side effect of some antipsychotics and several mental illnesses.
Also schizophrenia is NOT when someone has more than one personality, schizophrenia is usually marked by auditory or visual hallucinations and abnormal behaviors. Multiple personalities are a sign of Dissociative Identity Disorder (DID).
The sister chops up the dummy and Leon snaps, the BF lives and marries the GF Leon is stuck at the house w/a nurse and is deluded into thinking he's Leon due to his illness. The End.
Y'know what's an even more interesting question? What's the psychopath got in the bag Jason? - CM

I have seen this movie several times, and must say it certainly plays with your head a little. Here is what I think actually happened at the end upon carefully reviewing this movie, and my background on criminology:
Ursula ran into room with axe and lunged at Leon. This we know. However, think about this, if Ursula killed Leon, how could she be back at the house with her boyfriend on the very last scene??? If she commited murder, her ass would be in prison. She got tired of Pin, so she axed him up instead, thinking that if she detroyed the manequin, Leon would snap out of his pyschotic behaviorno Pin, no crazy Leon. So in return you have Ursula, sitting in a police car (for questioning) we can assume, and her boyfriend not quite dead in the woodpile. No actual murder took place at all, so even Leon couldn't get charged with the murder of the boyfriend, just battery.which leads me to my conclusion. Leon probably had a plead of temporary insanity, which allowed him to go back home and live..with a nurse, or supervisor (lady at end of movie who seemed to be "caretaker" of house). This lady was his at-home pyschiatric nurse. This leaves Leon sitting in the chair by the window in the very end. Leon at this point was so traumatized, he snapped again, this time "becoming" Pin comletely. Ursula's last statement was that she too missed Leon, and crying. She was crying because Leon was in fact "gone"mentally that is. Leon was phyiscally there, in that chair, by he window, but not mentally there.he had changed into Pin, or a strong likeness of him (i.e. makeup, prostetics). So, he continued to live in his parent's house (remember the money they had, they were rich and Leon could afford this stay at home mental health supervision) and just assumes he's now a mannequin that just sits in the window. If you have ever been to a mental hospital, patients will exhibit this behavior; sitting in front of a window, staring out. These mental patients long for being in the outside world, but know that in their mental condition they simply cannot be accepted, so the closest thing they have is a window to the outside world.
And Viola!! You have it.your answer to what exactly happened in the end of this movie. I don't want to spoil this "true" ending of the movie, because what makes it so interesting, is not knowing exactly what happened. Our minds tend to wonder on stuff like this, and that's what gives this movie it's creepy premise.

I thought the ending was just that Usuala killed Leon and put his face on the dummy. I thought she turned into a sicopath like her brother was at the end when she was hearing "Pin/Leon" talk?
I only saw this once when I was younger but that's what I got from it.

"Although the intent seems that his family is too strict or mentally abusive ('Leon count 100 backwards by 7's' ~ illistrating a visious impossible task for a little boy to do) but I do find it weak use of child abuse since the father doesnt actually make it hard on his children"
I think that's the point. If it was horrible child abuse, then the viewer could easily dismiss it, saying, "Well, anyone would have problems if they had a childhood like that." But this movie doesn't let you dismiss it so easily. The parents are not necessarily abusiveat least, in the sense that we usually think of the termbut the father exploits his son's desire to please him. All children want their parents approval, and Leon's father constantly makes him try to earn it, though it's never quite attainable. How many parents are there like this? Tons. Most kids get sick of it by the time they hit the teenage years (if not sooner) and they rebel against that desire for approval. But what if a kid continually sought approval and never rebelled? That's the case study of Leon.
Actually, Leon has one private rebelliontalking with Pin when the father is away. This becomes the one act of rebellion that he allows himself. And this is why he clings so desperately to Pin, because that relationship is the only thing not dictated by his father's approval. It's the only thing he does for himself, rather than for his father.
However, as the movie progresses, after the father is out of the scene, Pin's words seem to become more and more disapproving toward Leon, probably because Leon secretly feels guilty about rebelling against his father's wishes.
Of course, this movie takes this idea to the extreme, but the basic idea is very real. When a child has strict parents who make their children earn their favor, the child will often rebel completely, or else he will find his own "Pin" in order to assert some small aspect of his individuality. I've seen this happen in families more times than I care to mention, and it's very sad.

wow you did a wonderful job analyzing the outcome, although I think the intent was to make a Psycho (1960) shock ending when Norman Bates became his mother.
This is one of the few stories that I want to like but cannot. I think the problem with the story is the car crash, I think the intent is to make Pin a real "monster" and when Pin seems to be taunting the Aunt you would believe that its is alive (simular to Childsplay). Although the story tries to make it more intelligent by say's Pin is a product of a little boy needs for a friend, but his best friend is his sister and he chooses no other friends. (Again his need for Pin's friendship isnt clear) Although the intent seems that his family is too strict or mentally abusive ("Leon count 100 backwards by 7's" ~ illistrating a visious impossible task for a little boy to do) but I do find it weak use of child abuse since the father doesnt actually make it hard on his children (he even preforms an abortion ~ which I think would be hard for any real father to do on his own daughter and tell's them not to tell the mother)
I do think there are several things missed in the movie There should of been a time when Leon asks his father about PIN like on his 15th birthday (He must of had one)
The other problem I have with Pin is the scene where the cleaning lady/or nurse is having sex with it. I'm not sure about the intent, it seems to play on the mind of Leon that Pin is alive, although it shouldnt get him angry unless he wanted to be Pin's sexual partner (as a young boy) if that is the intent then he should of attack or kill the lady raping Pin?

The actual quote is "You lied again Leon, we didn't do it for Ursula, we did it for you!". Looked it up on Netflix instant queue.