I'll try. The girlfriend didn't want to continue to work for the old lady, but the old lady needed someone to talk to. She knew some things about the boyfriend, from talking to the young lady, things that sounded like what she wanted. The girl friend brought him over and the old lady wanted him. The boyfriend is actually the Devil, and wants the old lady for himself. The argument was to throw you off, thinking he was wanting the old lady for her money. It was him "flaming on", as only devils can do, in the bed that starts the fire. The woman at the end was housekeeper talking to the neighbor. Hope it helps, Randy