In Othello by William Shakespeare, Iago makes Othello believe that Desdemona is having an affair with Cassio. He does this by taking advantage of every situation to make Othello doubt. Iago causes Othello to have something a little crazy on his head, Othello thus gets Jesus which leads him to kill his wife, Desdemona, satisfying Iago's objection in revenge. The reason why Iago develops such an evil plan is that Iago suspects that Othello is having an affair with his wife Emilia. He quoted when he said "And abroad it is thought that between my sheets I have performed my office." The irony behind this sentence is that he then says, "I know not whether it be true, but I, from mere suspicion in that fellow, will act as if it were sure." This means that he is not sure that Othello is having an affair with his wife but he will pay anyway, this shows that Iago is so blind with his jealousy that he will do anything on his own. go so far as to make Othello accountable for this act which he certainly did not commit. Iago devises a master plan to get Cassio the position of lieutenant. Iago gets Cassio drunk so he can fight Rodrigo. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay. Othello then dismisses Cassio from the position of lieutenant when he says: How must poor Cassio have felt? Losing everything he had worked for, cementing his reputation that any heartless human being can say he earned and deserved. Iago knows that Othello who asks him about the deed because of his reputation for being an honest man. Iago tells Othello about the act of gaining his trust and that is when Iago begins to torment Othello from his weak point, his love for Desdemona. The first part of the plan begins when Cassio is drunk, and Cassio, but the plan begins to develop a little more when Cassio is fired from his position. Cassio is sad because his reputation has gone under the hill with the act he committed, unfortunately Iago uses Cassio as a puppet to carry out his evil plan. Iago suggests that Cassio try to talk to Desdemona to convince Othello. Iago knows that Desdemona is a very naive woman and will be a very valuable piece to continue his evil game. At the castle, Cassio meets Desdemona and urges her to ask Othello to take him back. The situation that Iago used to his advantage put the idea in Othello's mind that Desdemona and Cassio are having an affair. Desdemona insists that Othello return the position to Cassio. Which makes Othello increasingly doubt whether Desdemona has been faithful to him. With all those declarations of love and kindness, honesty towards Othello, Iago deceives every character in the play. Iago plays with Othello by manipulating him like a puppet, playing with Othello's mind which attacks Othello's mind like a Trojan horse. For example, when Iago says, “I think you think I love you…I protest, in the sincerity of love and honest kindness.” honest, honest Iago. Cassio: Goodnight, honest Iago... I never knew a kinder and more honest Florentine. Help Iago make Othello believe everything he tells him because Othello will think that he loves me so much that he didn't want anyone to take me for a fool when in reality the one who was taking Othello for a fool was Iago's loyal servant.Othello is desperate with all Iago told him as Iago to give more solid proof of Desdemona's infidelity. Unfortunately, that's when Emilia Iago's wife gives Iago Desdemona's handkerchief that she found in the palace hall. Iago put the handkerchief in Iago's locker and made Othello see Iago with it. Othello not satisfied with this evidence Iago proposed to Othello to take Cassio to an area near the castle and question him about his.