Othello - William Shakespeare

'So I will turn her virtue into pitch

And out of her own goodness make the net 

That shall enmesh them all'

As an incarnation of evil and a catalyst of jealousy, vengeance and murder, Iago, is the mainspring of Othello.

One of Shakespeare's most intriguing characters, Iago sets out to convince Othello of his wife's infidelity with Cassio. His motives are diverse - revenge, vanity, envy - but he succeeds in arousing strong suspicions in Othello's breast. Though noble and courageous, Othello finally allows himself to be duped by the coldly calculating Iago, and 'Chaos is come again'.