Good Minus the Plot Holes
I watched this movie because I saw the box and thought, "hey, this could be good." I still think I was right (confirmation bias maybe) but I had problems with a few plot holes and wouldn't mind some discussion.
*****SPOILER ALERT*****
Plot hole 1: The teacher's son.
So, the deformed kid was named Park Yong-Min. He was not fabricated by the serial killer as his story came before the victims' bodies showed up. Additionally, the townspeople told the cops the teacher raised a deformed kid in her basement. Lastly, the flashback where Jong-Won was being chastised for giving the kid back his bunny mask.
My assumption:
He may have been moved or jailed (juvenile delinquency) because he was in the same room as his father when his father committed suicide. Though he did not kill his father, he did nothing to save his father so he may have required some rehabilitation and may have been moved.
The only thing that was clear (as mud) was that he was not present when the killings happened.
Plot hole 2: The [molested] kid.
So it is made clear at the end of the movie that each child was a manifestation of each of Jung-Won's childhood experience. What about Myong-Ho? It didn't sound like he was a success like his peers. For argument's sake, let's assume he was though. What about the whole molesting thing? From the sounds and looks of it, the teacher didn't treat Jung-Won like that. So, what was his fault and/or what was the childhood experience that Jung-Won manifested unto Myong-Ho?
My assumption:
I do not know what to assume. Myong-Ho was portrayed as a druggie by Jong-Won... So? Druggie in real-life perhaps? Was Jung-Won a druggie? Maybe the producers thought, "Meh, they'll all be more focused on Jung-Won and the deformed kid to try and care about Myong-Ho."
Plot hole 3: The killings
So, we understand that all persons were poisoned. We further understand that they were all found in the basement completely mutilated and more. But, if they were all poisoned at a dinner, then why and how did they all end up in the basement? Furthermore, if Jong-Won was a lady, how did she lift Dai-Bong up to hang him up? There was the businessman and his wife, the baseball player, the delinquent, the super model, the shy-guy and the teacher. 7 total people. Only five were found in the basement. Where was the sixth body and where did they find the teacher? And about the teacher, she ate the same food as everybody so why wasn't she poisoned?
My assumption:
Jung-Won dragged all of the people to the basement and mutilated their already-dead corpses. She probably didn't clean the table or the blood trail of the dead bodies but the cops were still busy excavating the basement and have yet to notice the dining table. After she drug the corpses there and tied them up to prevent them from falling out, she hung Dar-Bong and beat him to a pulp. Jung-Won was already tired and having drug Myong-Ho to the basement last, Jung-Won passed out from exhaustion.
The teacher, due to her sickness, had a stricter diet and could not eat the same foods as everybody else. Because she was screaming out of hysteria, she too passed out. But where did they find her?
Still does not explain the super model, Soon-Hee. Still, if the cops haven't found the table yet, they probably didn't find the super model's body either. Still, five people ate the food at the table, four bodies accounted for, one completely vanished.
Plot hole 4: The polices' involvement.
How were the cops notified about the killings in the first place? If everybody passed out or were in the basement or were poisoned and then killed, why and how would the police know to go to this place? It did not appear as though anybody lived near the teacher so what gives?
My assumption:
They could've been discovered days after the whole incident but the bodies weren't decomposing yet either. Not sure.
...
Oh well.
I guess at the end of the day, it's just a movie.