Act 3 Scene 3
Desdemona seems to persuade her husband to re-appoint Cassio, but Iago begins to raise Othello’s suspicions of an affair between them. Emilia notices when Desdemona’s handkerchief – her first present from Othello – is dropped by accident. She picks it up and gives it to her husband, remarking that Iago has often asked her to steal it. Iago convinces Othello that he saw Cassio with such a handkerchief, and Othello demands that Desdemona and Cassio die for their adultery.