Emilia knocks at the door, (Emilia: "Aprite! Aprite!" / "Open up!") announcing that Cassio has killed Roderigo. Desdemona softly calls out that she has been unjustly accused, but refuses to blame Otello. She dies. Emilia calls Otello a murderer; he retorts that Iago gave him proof of Desdemona's infidelity. Otello begins to threaten Emilia, who calls for help. Iago, Cassio, and Lodovico enter. Emilia demands that Iago deny Otello's accusation; he refuses. Otello says that the handkerchief Desdemona gave to Cassio is proof enough. Emilia, horrified, explains that Iago stole the handkerchief from her—Cassio confirms that the handkerchief appeared mysteriously in his lodgings. Montano enters and says that Roderigo, with his dying breath, has revealed Iago's plot. Iago, brandishing his sword, runs away.