The Moorish general Othello is manipulated into thinking that his new wife Desdemona has been carrying on an affair with his lieutenant Michael Cassio when in reality it is all part of the scheme of a bitter ensign named Iago.
Two friends are goaded into a wager by Don Alfonso, who says he can prove their girlfriends are not as faithful as they claim. The two men both attempt to seduce the other's girl, helped by Don Alfonso and the girls' servant, Despina.