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.
Air date: December 8, 2014 / Directed by Bill Roe / Written by Chad Gomez Creasey & Dara Resnik Creasey
Guest Cast: Carole Gutierrez as Dr. Deb Lander, Larry Poindexter as Det. McBride, Vincent Spano as Christopher Carlucci, Mo Gallini as Rocco Carducci, Paul Ben-Victor as Dino Scarpella, Alex Frnka as Jane Scarpella.