At a secluded luxury hotel in Sardinia owned by Graziella, beautiful Italian wife of the still handsome Popeye who now likes to be known as Robert, the other characters from the first two films, now in their 50s, start arriving.

Christiane, scarred for life by an operation Jérôme botched, has with Miguel joined a weird Indian sect and seeks revenge.

Nathalie, to punish Bernard for reacting so hostilely to his son's homosexuality, claims she conceived him with another man in the alpine cabin where they all spent a night 27 years ago.

Graziella, fed up with the bickering and bed-hopping of her husband's embarrassing French friends, throws the lot out to spend the night with their luggage on the beach.

In the morning the group are joined by a boatload of illegal immigrants from North Africa, with whom they are bundled into vans by the police and taken to an internment camp.