Alejandro González Iñárritu immediately came to the attention of the world with his debut film, Amores Perros: his first work was nominated at the Oscars for Best Foreign Movie. Then 21 Grams, Babel, Biutiful, Birdman, and The Revenant: his movies have always received nominations and international prizes. His cinema and his troubled characters tell story of loneliness, pain, inner decline, violence, revenge, guilt, expiation, and redemption. Iñárritu shows us how individuals behave if pushed to their limits, as when they face fear, tragedy, death. It's a journey to the edge of existence that the author of this essay retraces step by step, guiding the reader along a deep descent into the human being.