I still want an explanation as to how the aliens in that movie managed to miss that 70% of the planet is covered by a deadly poison, and that it literally falls from the sky in most places.
The main character is a former priest. I don't remember any explicit blessings, but maybe being in a (ex-)priests house is enough. Or they were blessed when the protagonist found his faith again.
Or it was the daughter, who was constantly referred to as "angel".
My in-laws had their house blessed by their priest shortly after moving in. They do the same with their cars. Perhaps a house, properly blessed, provides the necessary protection?
Because it was _holy_ water that damaged them because they are demons not aliens in the movie. There is actually no scene in that movie of a spaceship or anything that indicates it's aliens
