‘Othello’ serves as a warning against letting jealousy control your actions. Iago, the bad guy, has some beef with Othello. Or Cassio. Or both. To be honest, I usually only get the gist of what’s happening when I read Shakespeare; there’s so much deciphering involved that I miss the finer plot points. Anyway, Iago decides to get even by convincing Othello that his wife is cheating on him with Cassio. He does a good job, too: He’s careful to keep his motives cloaked, he plants just the right doubts in Othello’s mind. Before long, Othello is caught in the throes of jealousy and kills his wife. (Just so you know, she takes it like a good woman in a classic tale and barely puts up a fight.) This act ushers in the typical bloodbath ending of Shakespeare’s tragedies. Iago’s wife exposes him for a liar, Iago kills her for it, and then Othello kills himself. The end.