Would you like to go back to live with your parents? At 40 years of age, Stéphanie is forced to go and live with her mother. She is made royally welcome in an overheated apartment with Radio Nostalgia permanently on, ferocious games of Scrabble and precious motherly advice on how to behave at table and to organise her life. Both will need infinite patience to put up with this new cohabitation. And when Stéphanie’s other brothers and sisters arrive for a reunion dinner with a Château Angélus bottle, family secrets are broached and old scores settled with untold jubilation. It turns out that bust-ups do everyone good. Welcome to the extreme sport of family living!