Iago that Desdemona is having an affair with Cassio. This plan occupies the final three acts of the play. He manipulates his wife Emilia, Desdemona's lady-in-waiting, into taking from Desdemona a handkerchief that Othello had given her; he then tells Othello that he had seen it in Cassio's possession. Once Othello flies into a jealous rage, Iago tells him to hide and look on while he (Iago) talks to Cassio. Iago then leads Othello to believe that a bawdy conversation about Cassio's mistress, Bianca, is in fact about Desdemona. Mad with jealousy, Othello orders Iago to kill Cassio, promising to make
Desdemona after Othello violently asks to see it. Desdemona is confused over her husband's behaviour, which culminates in his striking her in public and calling her a whore. Desdemona is deeply upset by her husband's attacks but continues to assert her love. In the final act, Othello tells her that he knows she has been unfaithful, and is going to kill her. Despite Desdemona's claims of innocence, Othello refuses to believe her, and when he tells her that Cassio has been killed, Desdemona cries out. Othello becomes enraged and strangles Desdemona, ignoring her pleas for mercy. When her maid Emilia rushes