Shipwrecked and separated from her twin, Viola disguises herself as Cesario and enters Duke Orsino’s service. A tangled love triangle ensues as Viola falls for the Duke, who loves Countess Olivia, who in turn falls for Cesario. Shakespeare’s “Twelfth Night” (Pocket Classics, ISBN: 9789389178500) is a comedic masterpiece of mistaken identity and romantic confusion.