- Characters are introduced: Duke Orsino, Olivia, Viola (Cesario), Sebastian, Sir Toby Belch, Maria, Malvolio, and Feste. - Background information: Duke Orsino is desperately in love with Olivia, who is mourning the recent loss of her brother. Viola disguises herself as Cesario and becomes Duke Orsino's servant.
ACT 3: CLIMAX
- Viola, disguised as Cesario, serves Duke Orsino.- Duke Orsino expresses his love for Olivia, sending Cesario to deliver his messages.- Viola develops feelings for Duke Orsino: "Yet a barful strife! Whoe'er I woo, myself would be his wife." (1.4)
ACT 4: FALLING ACTION
- Cesario interacts with Olivia, who becomes infatuated with Cesario.- Olivia confesses her love for Cesario: "Thy tongue, thy face, thy limbs, actions, and spirit, do give thee fivefold blazon. Not too fast! Soft, soft!" (1.5)- Viola realizes she has fallen in love with Duke Orsino: "Yet a barful strife! Whoe'er I woo, myself would be his wife." (2.4)
ACT 5: DENOUEMENT
- Sir Toby Belch, Olivia's uncle, encourages Sir Andrew Aguecheek to court Olivia.- Olivia continues to pursue Cesario while rejecting other suitors. - Viola and Orsino grow closer, and Viola admits her true identity: "I am not what I am." (3.1)
- Feste, the clown, plays tricks on Malvolio, Olivia's steward, leading the latter to believe Olivia loves him. - Olivia declares her love for Cesario (Viola): "Make me a willow cabin at your gate, and call upon my soul within the house." (4.1) - Sebastian, Viola's twin brother, arrives in Illyria, causing confusion.
- Sir Andrew challenges Cesario (Viola) to a duel, but Sebastian arrives, mistaking Sir Andrew for someone else, and defeats him. - Olivia mistakenly marries Sebastian, thinking he is Cesario. - All identities are revealed, leading to reconciliations and marriages:- Viola and Duke Orsino: "I'll be thy husband if thou be my wife." (5.1) - Olivia and Sebastian: "Madam, I'll follow you unto the death." (5.1) - Sir Toby Belch and Maria: "Wed, i' faith, with all my heart." (5.1)