The Infernal Machine, or La Machine Infernale is a French play by the dramatist Jean Cocteau, based on the ancient Greek myth of Oedipus. The play initially premiered on April 10, 1934 at the Theatre Louis Jouvet in Paris, France, under the direction of Louis Jouvet himself, with costumes and scene design by Christian Bérard. The Infernal Machine, as translated by Albert Bermel, was first played at the Phoenix Theatre, New York, on February 3, 1958, under the direction of Herbert Berghof, with scenery by Ming Cho Lee, costumes by Alvin Colt, and lighting by Tharon Musser. Plot summary Prologue The Voice presents a brief prologue and information about events that have occurred before the action of the play takes place. The Voice recounts that a baby is abandoned on a mountainside. The baby, Oedipus, is adopted by the King of Corinth. Oedipus questions the Oracle of Delphi who says he will murder his father and marry his mother. At a crossroads, Oedipus comes to blows with other travelers and unwittingly kills his father, Laius, King of Thebes. After conquering the Sphinx, Oedipus enters Thebes and claims the prize of marrying Queen Jocasta. Again, he unwittingly fulfills the Oracle's prophecy and, in marrying the Queen, marries his mother. After having four children with his mother, everything is brought to light. Jocasta hangs herself and Oedipus blinds himself with his mother's brooch. The Voice finishes with: "Before you is a fully wound machine. Slowly its spring will unwind the entire span of a human life. It is one of the most perfect machines devised by the infernal gods for the mathematical annihilation of a mortal." Act I: The Ghost While guarding the walls of Thebes, the two soldiers discuss the matter of the Sphinx and what it may be. They continue to their sighting of the Ghost of King Laius, when the Officer arrives. The Officer questions the two about the ghost sighting and leaves them to their duties. Tiresias and Jocasta enter and question the soldiers about the ghost sighting as well. As Jocasta begins to believe more and more, the ghost of King Laius appears. Despite his calls for his wife, he cannot be seen or heard by anyone else. After the cock crows in the dawn, Tiresias and Jocasta exit. After the two leave stage, the ghost of King Laius becomes audible and visible to the two soldiers.