What happens in Act III of Hamlet?
Act III begins with Claudius and Polonius setting up the "nunnery" encounter, using Ophelia as bait to observe Hamlet's behavior. Hamlet enters mid-soliloquy — "To be, or not to be" — but then notices Ophelia and attacks her with harsh, disorienting cruelty, claiming he never loved her and urging her to a nunnery. Claudius, skeptical of the madness theory, decides to send Hamlet to England. Hamlet then instructs the visiting players on how to perform naturally before the court gathers for "The Mousetrap," the play-within-a-play intended to expose Claudius's guilt. As the king stands and calls for lights, he exits, confirming his guilt to both Hamlet and Horatio. Fueled by this revelation, Hamlet finds Claudius alone at prayer but chooses not to kill him, reasoning that dying in prayer would send him to heaven. Instead, he heads to his mother’s chamber, where he hears movement behind the arras and stabs Polonius dead. The act concludes with Hamlet's fierce confrontation of Gertrude, the Ghost's reappearance (visible only to Hamlet), and Hamlet's sarcastic realization that he must now deal with Polonius's body.
Analysis
Act III serves as the play's structural and moral pivot, with Shakespeare intentionally infusing it with a sense of theatrical self-awareness. The play-within-a-play brings to life the act's key concern: performance as a trap. Hamlet's advice to the actors — "suit the action to the word, the word to the action" — acts as both an artistic creed and an ironic critique of himself, since Hamlet often fails to align his words with his actions. The "To be, or not to be" soliloquy presents itself not as a private revelation but as something overheard, already tainted by the presence of others; its philosophical depth is undermined by the following staged encounter, where Hamlet's approach to Ophelia swings between tenderness and misogynistic brutality, hinting at a performance that veers into genuine cruelty.
The prayer scene represents Shakespeare's boldest delay: Hamlet's reasoning is theologically sound yet morally disturbing, leaving the audience uncertain whether he's engaging in clever reasoning or true moral conflict. The accidental and impulsive killing of Polonius — the wrong target — illustrates the central irony of the tragedy: when action finally occurs, it is misdirected.
The tone of this act shifts between the ceremonial (court performances, formal prayers) and the violently personal (the closet scene). The Ghost's reappearance in Gertrude's chamber brings back the supernatural precisely when Hamlet's behavior might seem simply pathological, keeping the audience's understanding shaky. Shakespeare avoids clear resolution at every turn, tightening the moral knot instead of loosening it.
Key quotes from Act III
“To be, or not to be, that is the question: / Whether 'tis nobler in the mind to suffer / The slings and arrows of outrageous fortune, / Or to take arms against a sea of troubles, / And by opposing end them.”
Hamlet opens his most famous soliloquy, meditating on endurance versus action — a question that haunts every choice he makes in this act.
“The lady doth protest too much, methinks.”
Gertrude's dry aside during 'The Mousetrap' carries an irony she cannot yet perceive, implicating herself in the very guilt the play is designed to expose.
“Now might I do it pat, now he is praying; / And now I'll do't — and so he goes to heaven; / And so am I revenged. That would be scanned.”
Hamlet stands over the kneeling Claudius and talks himself out of the kill, in a passage that crystallises the act's central tension between thought and action.