When clues in a murder implicate Castle and Beckett’s nemesis, Dr. Kelly Nieman (guest star Annie Wersching), Castle is called in to consult on the case. But as the team delves deeper into the investigation, they uncover connections to notorious serial killer Jerry Tyson (guest star Michael Mosley).
Original Airdate: February 9, 2015
Filming dates: December 11 to December 19 and January 5
Writer: David Amann
Director: Bill Roe
Annie Wersching as Dr. Kelly Nieman, Michael Mosley as Jerry Tyson, Laura Coover as Susan Watts, Amy Rosoff as Katrina and Maya Goodwin as Laura.