Othello goes mad with jealousy and later smothers Desdemona on their marriage bed, only to learn of Iago’s treachery. Iago uses this and other ploys-misinterpreted conversations, insinuations, and a lost handkerchief-to convince Othello that Desdemona and Cassio are lovers. He lures Cassio into a drunken fight, for which Cassio loses his new rank Cassio, at Iago’s urging, then begs Desdemona to intervene. The Senate agrees to let her join Othello in Cyprus.In Cyprus, Iago continues to plot against Othello and Cassio. She tells of her love for Othello, and the marriage stands. The Senators wish to send Othello to Cyprus, which is under threat from Turkey. Before the Venetian Senate, Brabantio accuses Othello of bewitching Desdemona. Othello has promoted Cassio, not Iago, to be his lieutenant.Iago crudely informs Brabantio, Desdemona’s father, that Othello and Desdemona have eloped.
Entire Play In Venice, at the start of Othello, the soldier Iago announces his hatred for his commander, Othello, a Moor.