La Grande Bouffe is a satire on consumerism and decadent bourgeois society. Four men, who are all called by their real names – Marcello (Marcello Mastroianni), Philippe (Philippe Noiret), Michel (Michel Piccoli), and Ugo (Ugo Tognazzi) – are so sick of their tedious lives that they decide to shut themselves in a villa and eat themselves to death. Ugo, a restaurant owner who delights in acting like 'Godfather' Marlon Brando, is the chef; Philippe is a high-class magistrate who lives with his nursemaid Nicole (Michèle Alexandre); Marcello is a pilot and a sexual predator; and Michel is a television producer and presenter.
Everything is done in the worst of possible tastes. Vanloads of full of food arrive, prostitutes are supplied by Marcello, and a grand festival of noshing, sex, farting and shitting begins. The actual property (here belonging to Philippe) is 68 rue Boileau in the 16e arrondissement, and schoolteacher Andréa (Andréa Ferréol) joins them as she's interested in the tree in the garden underneath which Nicolas Boileau wrote his poetry. (The site is now the Vietnamese Embassy.)
Gradually, all four friends die, although the first, Marcello, marches out of the villa exasperated by his impotence, intending to leave in a 1920s Bugatti, but is found frozen in the car in the morning; Michel dies of indigestion; Ugo stuffs himself to death; and Philippe dies under a bench under the Boileau tree after eating a cake made by Andréa in the shape of two breasts.
The back support of the bench has a common quotation in English by Dorothy Frances Gurney: 'Kiss of the sun for pardon. Song of the birds for mirth. You're closer to God's heart in a garden than any place else on earth.'