Change is a very important thing in marriage. It's difficult to put your finger on the exact moment when it becomes necessary for survival. That point when security degenerates into monotony. There are a number of danger signs to look out for, but in the Marriott household now, the storm warnings weren't so clear. It started one evening when Emily was on the telephone with a friend of hers, and Ben and Liz were in the living room trying not to listen...