Thanks everyone for all the help. I was able to get out of the house. Be happy to say how if that is appropriate. I don't think I have quite figured this game out. But will keep trying.
Actually I'm playing at the easiest level. I only have auto saves and they are all in the house. I've tried killing the daughter first, I've tried picking the guys pocket for a key. But he attacks me before I can get it.
I really don't see how I can defeat them.
I'm at the Mather house. I cannot defeat the family. I have tried multiple times. Do I have to start a new game as I seem to be stuck in their house.
Thanks