Castle will delve into the murky, grey waters of the political arena on Monday, as the team takes on a case that directly involved the Mayor.

How will the victim be found? How will Castle react to this awkward situation, given his friendship with the man in charge of the city? What advice will Gates offer to Beckett? All these questions and more are answered in the following three clips.

Check out the ABC promo for "Dial M for Mayor" now and then get an early look at what's to come.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.