This drama is one of the great comedy plays by William Shakespeare. Viola, cross dresses and takes the man's name of Cesario. Viola enters the service of the Duke of Illyria, Orsino. Orsino longs for the love of a neighboring countess.

Viola (Cesario) then falls in love with Orsino. To add
to the farce Viola's (Cesario) identical twin, Sebastian arrives on the scene. Living in Olivia’s household is her uncle, Sir Toby Belch, a merry character.

The steward of the household is the conceited Malvolio.The plot illustrates jealousy, mistaken Identity, cross-dressing and features fights and duels. In
the end Sebastian and Olivia fall in love and marry.

Orsino realises that it is Viola that he loves and she agrees to marry him. Sir Toby Belch and Maria also decide to marry! Twelfth Night ends and everyone, except Malvolio, is happy and Shakespeare speaks of the madness of love.