Nancy and Robert are working out their relationship. Slowly. Very slowly, yes, but she's sure that they'll get there in the end.
Then Robert's new neighbours move in, and rocking the boat does not even begin to describe it. Edward and Giselle seem to be living a fairytale-perfect lift, but not only do the cracks begin to show in that facade, but in the one that Nancy and Robert have carefully built as well.
Before they know it, all of them have been changed, irrevocably, by what has happened.