Vacation's End

A lot can change over a weekend.
Saturday, Ramsey and Blaire Keifer heard possible grave news.
Sunday, definitive news came—there was no question now.
Monday, Ramsey walked away from a good-paying job he liked and contacted his broker to sell all of their investments.
Blaire is not herself. She cries often. Little things set her off that normally would not.
Their kids, Alanie and Will, are prohibited from watching TV or listening to the radio.
What did they not want their children to see or hear?
Why the peculiar behavior?
Why drop everything to go on vacation?