"I don't feel safe with him in the house"

I thought the statement was hilarious. Because how bad has your life turned when you have to say that about your own 8yr old. Nope, it ain't going good.

Mom is about as stupid as they come. She was really gonna kill this woman Margaret to get her son back. And look at what she did. She only got the woman sliced and diced.

Regarding the ending: They make it look like Miles/Scarka is gonna make a run at a nice killing career, but I don't see how. His dad is gonna raise a ruckus when he gets out, and Dr Jacobson is gonna be hot on his trail also.