Megaera
Title
Megaera is the jealous one in Greek mythology. Megaera is a 7 letter word.
Feature
The idea was to make a story about the 7th Commandment, You shall not commit adultery. That is precisely what is happening in this story, adultery taking place in a hotel room. Furthermore it relates to the silent theme because adultery is an activity that one would rather keep quiet about. In other words keep silent.