Matthias Duval is in love, but he can’t choose between the two twin sisters Betty and Liz Kerner. To pick up the two sisters, he invents his own twin brother…

A supposedly idyllic weekend trip to the countryside turns into a never-ending nightmare of traffic jams, revolution, cannibalism and murder as French bourgeois society starts to collapse under the weight…

A young American studying in Paris in 1968 strikes up a friendship with a French brother and sister.