Person of Interest, spoilers I'm sure

[ka jowct]

An oblique clue in the form of an excerpt from Lady Macbeth's sleepwalking scene in Shakespeare's Macbeth. Of course you first have to take the text, convert it into ASCII hexadecimal, with A-F replaced with Greek letters, and then mapped from Latin letters to Greek letters. Or something close to that. I got kind of lost somewhere around "A=Omega".

The target audience for this scares me.