Well--it would have Othello, Iago, Cassio, and Desdemona sent to Cyprus in order to investigate the governor's ties to the Turks; Cassio is the Architect, so whatever Othello sees in the dream, he thinks Cassio has built there. But Iago has hacked the architecture to graft a second dream onto this dream--not a dream within a dream, but a sort of auxiliary logic engine that, with the right set of actions in place, begins to replace the logic of the dream that Cassio's built ... with a logic of reality. Othello has to determine which is the real dream, the false dream, and reality--before he is driven to kill his own wife.

(Why did I not do something like that? I write Brothers Karamazov fic. I should have done something like that.)