**SPOILERS**
So the story analysis goes like this:
The kid's dad was murdered by the kid's mum for having an affair with the lady from Level 7. After the dad was murdered, he was chopped into bits and was cooked and disguised as food by the mum. The mum didn't wanted the pieces to go to waste so she tells the kid to give the "leftovers" to the neighbours (probably to hide evidence or something, who knows?) despite the kid being told not to talk to strangers and is armed with limited communication skills. The kid does follow the request with meeting neighbours but with some people foreshadowing what his mother did such as the old guy whose wife was apparently murdered and denied the leftovers and the woman in level 1 who apparently found an eyeball in her meal. The shit happens when the kid finally meets with the woman in Level 7. She contacted the mum about the meal and that Kenneth (the dad) is a very lucky man to have her cook for him everyday but the mum said that he was a very lucky man (either implying he is dead or that they are separated) to which the woman guessing that he finally told her about them (the dad and Laura, the woman from Level 7) but the mum said that is not what she meant and tells her something that made the woman call the mum a psycho bitch (which gives us to a conclusion that the dad was murdered). She then proceeds to turn insane and chases the kid and if she gets the kid while he doesn't move, she will kill the kid for giving the so-called "leftover" (which also gives us to the conclusion that the dad was the meal). When the kid does arrive home, the mum is seen carrying a knife and says that she has "leftover business" to take care of (this likely implies that she will deal with the woman in Level 7 herself by fucking killing her off).