The tone in "Night Woman" is the will to do something that may not be right, but its the only thing you can do. The woman just wants the best for her son like every mom want the best for there children. And that will to get your child ahead of you either being more educated or more financially stable then you are is what everyone wants. I think that this is little extreme though maybe instead she could just pick up a job where the time she could work would be at night. And it will be a lot less risky then having your son find out what you actually do.