Mother with the knife scene
In the scene where Agnes pulls the gun on the pimp who just raped her, and her mother in turn grabbed a knife and told her to leave the house, was the mother actually trying being motherly and protective in a weird sort of way?
On the surface it looks crazy having a mother pull a knife on her daughter, telling her to get the hell out after she had just announced she had been raped. But, if you think about it, it is possible that the mother was doing that for a reason. Perhaps she knew that Agnes was in danger if she stayed and that getting her out of that house at all costs was the right thing to do. So her threatening with the knife might have been her way of pushing Agnes out the door and to safety.