Twelfth Night is a story of mistaken identity, concealed truth, and comic hi-jinks. After a shipwreck, Viola finds herself washed ashore on the beach of Illyria, having lost her twin brother Sebastian in the storm. Masquerading as a young man, Viola enters the service of Duke Orsino, who is in love with the lady Olivia. The Duke charges the disguised Viola(now Cesario) to help him win Olivia’s hand. Olivia falls in love with the disguised Viola who, in turn, has fallen in love with the Duke.
It gets even more complicated when Sebastian arrives in Illyria, is quickly mistaken for the disguised Viola/Cesario, and finds himself married to Olivia. Meanwhile, in the court of Countess Olivia, Christmas is over but no one is going home. Sir Toby Belch and Sir Andrew Aguecheek wreak havoc with an alliance of servants and hangers-on against he high-handedness of their steward, Malvolio. Eventually all is revealed, the brother and sister are reunited, Olivia discovers the trick that has been played on Malvolio, and the love triangle is resolved into two couples, Sebastian and Olivia, and Viola and Orsino. Almost everyone lives happily ever after!