ABC has released the official synopsis and a whole batch of stills for the January 16th episode of Castle, "Dial M For Mayor", or is it Murder!
"Dial M for Murder"
- Derek Webster ("Desperate Housewives," "Damages") guest stars as Mayor Robert Weldon, Castle's longtime friend and the Mayor of New York City.
- It was Mayor Weldon's political clout that allowed Castle to partner up with Beckett.
- But now, when a woman is found dead in a car that traces back to the Mayor's motor pool, that partnership comes under fire as the scandal surrounding the investigation threatens to bring down Weldon's administration.