Where do ideas come from?

Last night I had a dream that there was a new spin-off TV series called CSI:Elsinore. Their first episode is an investigation into the suspicious sudden death of the king of Denmark. Yes, it's CSI as written by William Shakespeare. How do you say the evidence never lies in iambic pentameter? Rosencrantz and Guildenstern are CSI agents.

Oh Freud, what would you make of this one? Something is rotten in the state of my mind.