Anne and Bob, an American couple living in Paris, organize a dinner party and invite ten friends.

Bob's son with another mother arrives by surprise and the total number of guests is now 13.

The superstitious Anne asks her maid, Maria, to pretend to be a rich Spanish friend and join the table.

Bob’s son, who is not a fan of his stepmother Anne, tells David that Maria is actually royalty but will not admit it.

The website's critics consensus reads "Madame's retrograde trappings are further weighted down by unlikable characters and an overall inability to do justice to its themes.