[hyperballad]

Just watched this movie for the first time today, and I have a number of questions (Spoilers ahead)

1. *sort of redundant* What in the world was Sarah doing driving pregnant when her husband was in the car with her?
2. In the car crash, both of their vehicles are at strange angles. So just whose fault was that car crash? Sarah's or the woman's?
3. Why was Sarah told that there were no other survivors?
4. How did the woman get into the house?
5. How was the woman not blinded after being sprayed in the face with fire?
6. At the end of the movie, was the woman trying to help Sarah or did she only care about the baby?

These are only the beginning of the plot holes I found. Rather good movie, though.