Castle 7×10 Promo “Bad Santa”

Castle 7×10 “Bad Santa” – When an ER physician is gunned down in the street, Castle and Beckett soon discover that the victim was a mob doctor to a Mafia family run by an old friend of Castle’s. Also, against the backdrop of Christmas, Esposito and Lanie reach a defining moment in their relationship, on “Castle,” Monday, December 8th on ABC.