What happens in Act IV of Othello?
Act IV showcases the devastating breakdown of Othello's rationality. Iago orchestrates a conversation with Cassio about Bianca while Othello secretly listens, manipulating him into thinking their laughter and casual talk are about Desdemona. The handkerchief, which Iago planted, is returned by Bianca to Cassio right in front of Othello, solidifying his belief in her infidelity. Othello, now overtaken by a fit of rage and struggling to articulate his thoughts, publicly strikes Desdemona in front of the visiting Venetian dignitary Lodovico, an act that horrifies the court. Meanwhile, Iago is convincing Roderigo to kill Cassio that night. Desdemona, confused and heartbroken, prepares for bed, singing the "Willow Song" she learned from her mother’s maid, Barbary, who also faced abandonment by a mad lover. Emilia, sensing trouble, urges Desdemona to be straightforward, but Desdemona maintains her innocence and love. The act concludes with a domestic moment of profound tenderness, as Desdemona bids goodnight to Emilia, creating a sense of dramatic irony since the audience is aware of the tragic events that await.
Analysis
Act IV showcases Shakespeare's skill in a particularly harsh light. The eavesdropping scene demonstrates dramatic irony at its finest: the audience observes Othello weaving a false narrative from bits of genuine conversation, and the disconnect between his perceptions and reality becomes almost too much to bear. Iago's manipulation of the stage—placing Othello as a bystander and choreographing Cassio's actions—echoes the playwright's own dominance, a self-aware choice that draws attention to how the act of watching theater contributes to the formation of jealousy.
The public humiliation of Desdemona marks a significant tonal shift. Up to this point, Othello's violence has been internal; now it spills into the public sphere, seen by Lodovico, whose shocked aside ("Is this the noble Moor whom our full Senate / Call all in all sufficient?") highlights how far Othello has strayed from his initial greatness.
The Willow Song sequence makes a complete shift, adopting a folk-lyric style that carries its own ancient significance. Barbary's tale—intertwined with Desdemona's—creates a layered narrative of forsaken women, implying that Desdemona's fate is not unique but rather indicative of a broader pattern. The song's refrain ("Sing willow, willow, willow") acts as a ritualistic nod to death, and Shakespeare allows it to be interrupted, partially recalled, and corrected—an expression of grief that is both performed and deeply felt. Emilia's practical, proto-feminist remarks in the final exchange sharpen the act's thematic message: the tragedy stems not from fate but from human-created injustice.
Key quotes from Act IV
“Is this the noble Moor whom our full Senate / Call all in all sufficient? Is this the nature / Whom passion could not shake?”
Lodovico speaks after witnessing Othello strike Desdemona, voicing the play's central irony about reputation versus reality.
“Sing willow, willow, willow… / Let nobody blame him, his scorn I approve.”
Desdemona sings Barbary's song as she prepares for bed, the lyric's self-abnegating refrain a devastating index of her conditioning.
“But I do think it is their husbands' faults / If wives do fall.”
Emilia delivers her counter-argument to Desdemona's passive acceptance, introducing a note of social critique into the play's final domestic scene.