The music for this film is composed by the greatest composer of film music of all time, Ennio Morricone. But it's almost nonexistent and as little as it is, it's not great. Deliberately maybe, because the subject itself, with capital M, is Madness, The Madness of Humanity. Place of the action: the crazy world we live in, a world where those who do not kill, do not use drugs, etc., are abnormal. Here's what the director Elio Petri himself says, in his book "The adventurous history of Italian cinema": "It's a film about the société du spectacle. In the society of the spectacle it's not the spectacle of life, there is only the show that gives you the impression that you live, while you don't live from long time ago. I believe that reality is no longer there. I think that ours is a simulacrum of life, our love a love simulacrum, our culture, a culture of simulacrum." We have four great actors, all four special talents: Giancarlo Giannini, Angela Molina(the one from "That Obscure Object of Desire" by Bunuel), Aurore Clément, Paolo Bonacelli(the one from "Salò, or the 120 Days of Sodom" by Pasolini). A film to be seen at least twice, to understand it better. And then to see it again.