Nutshell Summary

Count Orsino is infatuated with the Countess Olivia, who refuses his suit.    
 
Viola is washed ashore after a shipwreck, her twin brother presumed drowned. She disguises herself as a man in order to serve in Orsino’s court. As ‘Cesario’, Viola quickly gains favour and is sent by Orsino to woo Olivia on his behalf. Viola does so reluctantly, having fallen in love with Orsino herself.