'O, beware, my lord, of jealousy! It is the green-eyed monster which doth mock The meat it feeds on.' Dramatic and powerful in its scope, Othello explores the perils of suspicion and jealousy and More... the ensuing breakdown of relationships and disaster that can arise from such emotions. Othello, a revered soldier, secretly marries Desdemona, the daughter of a Venetian senator, but is led to believe that she has been unfaithful to him by his ensign, Iago, leading to tragic events.