Madeleine and her husband Antoine have invited friends for Christmas Eve dinner.Unfortunately,soon before the meal,she realizes that there is going to be thirteen guests around the table .Although she claims she's not superstitious,Madeleine thinks that it's going too far all the same .So,she will spend the whole Christmas night trying to increase or reduce the number of the revelers.But all that she does backfires against her and the number is always the fatal thirteen.