Act 1:
The Act begins with Iago and Roderigo discussing their mutual hatred towards Othello. Iago is angry because Cassio, less experience than him, is promoted to the rank of lieutenant, rather than himself. He tries to set up Othello by telling Brabanchio, the father of Desdemona, that he (Othello) has stolen his daughter. Eventually, through the use of colorful wording, he and Roderigo finally convince Brabanchio to gather his men and search for Othello. Othello is put in court, where he disputes his case with Brabanchio. Desdemona arrives to defend him, and they manage to convince her father that they have fallen madly in love with one another.
Act 2: Cassio enters the scene and greets Desdemona, who is waiting for Othello to return. Iago enters with his wife and begins to mock women. He says, “You rise to play and go to bed to work”. This only works to reinforce the negative qualities of Iago to the reader. Eventually, Cassio becomes drunk and Roderigo picks a fight with him and then runs away. Othello manages to catch Cassio mid-brawl and questions him. Just after plotting this, Iago reveals to the audience that he suspects Othello of sleeping with his wife, Emilia. He plans to sleep with Desdemona to get back at him, “a wife for a wife” in his own words.
Act 3:
Iago convinces Cassio to fix things with Desdemona and hopes to gain Othello’s favor again. Othello interrupts him, causing him to run away. As soon as Desdemona leaves, Iago begins filling Othello’s head with false rumors, causing him to question his wife’s loyalty. Emelia gives Iago Desdemona’s handkerchief. He then uses it to reinforce his lies, sending Othello into an even deeper rage.
Act 4
Iago talks to Cassio, twisting his words to portray him in a negative light. Othello questions Emilia of Cassio and Desdemona’s relationship, and even after she explains to him that there isn’t one, he does not believe her and brands Desdemona a prostitute. Desdemona,