in the junk man's house, after she killed the man. what liquid is that? it's black so it's surely not blood? also, immediately after that why did we get a flashback of do-joon acting like a parking guy? thanks.
I'm pretty sure the liquid was blood, even though I do agree that it was very dark. In a later shot you can see that it's pouring out of the dead guy's head. And she screamed because she realized that she had just killed a man, she was too caught up in the moment until then.
-------------------------------- Oh you mad cuz I'm stylin on you
She also seems fairly traumatized by fluids, as evidenced throughout the movie (such as when she watches her kid urinate and then tries to clean it up), which I think relates to her memories of the attempted murder/suicide --- all she recalls is that it made them 'vomit and sh*t water.'
no, she did plan it. she just used a cheaper brand of the product she wanted to use. although im not sure why a cheaper brand would be so far off. or maybe her knowledge of medicine/chemicals was lacking.
The old man was a robot. The mother was in shock that she bionic robots existed so... she had to burn the house down so the Bionic robots friends didn't chase after her.