Castle/Season Eight

Season Eight
Castle
Season Premiere	September 21, 2015
Season Finale	May 16, 2016
Episode Count	22
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Season Eight of Castle premiered on September 21, 2015.

Episodes

#	#	Title	Written By	Directed By	Airdate	Viewers	18-49 Rating	Prod.
152	1	XY (1)	Terence Paul Winter & Alexi Hawley	Rob Bowman	September 21, 2015	6.84M	1.2%	801
After passing the Captain's exam, Beckett was surprised with an offer to run for State Senate. Castle and Beckett are adjusting to Beckett's career change, when a call from a mysterious stranger sets off an explosive chain of events.
153	2	XX (2)	Alexi Hawley & Terence Paul Winter	Paul Holahan	September 28, 2015	6.7M	1.2%	802
Beckett's side of her abrupt disappearance is revealed. After receiving a mysterious tip from her past, Beckett is launched into a fight for her life, with a team of mercenaries hot on her trail. While Castle investigates why his wife is on the run, Beckett must figure out who wants her dead, before they can finish the job.
154	3	PhDead	Chad Creasey	Rob Bowman	October 5, 2015	6.76M	1.2%	804
When the body of a local college fraternity student is found gruesomely murdered, Castle has to go undercover as a professor in order to gain access to the victim's world. However, he and Beckett soon discover that behind the fun and games of college are some darker secrets the university wants to keep hidden.
155	4	What Lies Beneath	Barry O'Brien	Larry Shaw	October 12, 2015	6.777%	1.1%	803
When Castle's idol, a famously reclusive author, turns up dead, Castle is determined to solve his hero's murder. But as he and Beckett dig deeper, they discover that truth is stranger than fiction.
156	5	The Nose	Nancy Kiu	Steve Robin	October 19, 2015	6.67M	1.1%	805
When a priceless work of art is stolen and its transporter murdered, Castle and Beckett must work with the key witness to track down the painting and sniff out the killer.
157	6	Cool Boys	Alexi Hawley	Paul Holahan	November 9, 2015	6.069M	1%	808
Detective Slaughter returns to enlist Castle's help in solving a high-stakes robbery case. But when a body is found linked to the crime, Slaughter becomes the number one suspect in the heist turned murder, while Castle has to determine whether he's guilty or help to prove he's innocent.
158	7	The Last Seduction	Rob Hanning	John Terlesky	November 16, 2015	6.662M	1.1%	806
In order to hunt down the brutal murderer of a grifting seducer, Castle & Beckett must investigate New York's elite. Meanwhile, Castle plans to surprise Beckett on their one-year wedding anniversary.
159	8	Mr. and Mrs. Castle	Christine Roum	Jeff Bleckner	November 23, 2015	6.654M	1.1%	807
Castle and Beckett investigate the murder of a cruise ship entertainer, only to find themselves trapped at sea with the killer.
160	9	Tone Death	Robert Bella	Hanelle Culpepper	February 8, 2016	5.718M	1.1%	809
When a body is found in the theater of Martha's latest show, Castle and Beckett's investigation leads them into the unexpectedly dangerous world of competitive a capella.
161	10	Witness for the Prosecution	Terence Paul Winter	Bill Roe	February 14, 2016	4.19M	0.8%	810
Castle finally gets his day in court when he takes the stand as the key witness to a murder from five months ago. But when new information suddenly arises, he and Beckett must race against the clock to prevent a miscarriage of justice.
162	11	Dead Red	Jim Adler	Jeannot Szwarc	February 15, 2016	5.147M	0.9%	811
When the son of a Russian diplomat turns up murdered, Beckett and Castle find themselves in a dangerous game of international crime and punishment, with Castle having to entertain a jovial Russian security officer who winds up more involved than anyone planned.
163	12	The Blame Game	Michael Zebede	Jessica Yu	February 22, 2016	5.475M	1.1%	812
Castle is captured and forced to work with strangers to solve deranged puzzles and mind games, while Beckett and the 12th Precinct must race against time to rescue Castle and catch a killer.
164	13	And Justice for All	Adam Frost	Kate Woods	February 29, 2016	5.258M	1.1%	813
Beckett and the 12th Precinct look into the murder of an English as a Second Langue student. But when the victim's class won't talk to the police, Castle goes undercover as a French Canadian immigrant and learns that the victim was more than he seemed.
165	14	The G.D.S.	Alexi Hawley	John Terlesky	March 7, 2016	5.677M	1.1%	814
Castle returns to the City of Angels in search of answers about his missing time. But things take a deadly turn when he's recruited by the legendary Greatest Detective Society to help solve a murder.
166	15	Fidelis Ad Mortem	Chad Gomez Creasey	Rob Bowman	March 21, 2016	6.496M	1.1%	815
When a recruit officer at the NYPD Academy is killed, Beckett and the team go back to their old training ground to investigate. Meanwhile, Castle must reckon with a decision with profound consequences for him and Beckett.
167	16	Heartbreaker	Barry O'Brien	Tom Wright	April 4, 2016	6.372M	1.1%	816
A clue at the scene of the death of an armored-car driver leads Beckett and Castle back to an old case solved by Esposito. But complications arise when they learn that Esposito might not have been telling them everything about his past with the culprit.
168	17	Death Wish	Stephanie Hicks	Bill Roe	April 11, 2016	6.435M	1.1%	817
The murder of a man connected to smuggling Turkish relics sends Castle, Beckett and the 12th Precinct on a search for a stolen antique believed to be Aladdin's lamp, in hopes that it can lead them to the killer.
169	18	Backstabber	Robert Bella	Jessica Yu	April 18, 2016	5.864M	1%	818
After Hayley does a favor for an old friend, she finds herself implicated in a killing and cyber-terror attack. Now, Beckett and Castle must rush to solve the case and clear Hayley's name.
170	19	Dead Again	Rob Hanning	Bill Roe	April 25, 2016	6.186M	1.1%	819
When a mild mannered safety inspector for the city miraculously survives a poisoning, it might be luck; but when he survives another, it's a mystery Castle and Beckett will have to solve.
171	20	Much Ado About Murder	Christine Roum	Hanelle Culpepper	May 2, 2016	6.029M	1%	820
After a movie star turned theater actor is mysteriously killed, Castle and Beckett go backstage and learn the star had more to worry about than just his lines.
172	21	Hell to Pay	Jim Adler	John Terlesky	May 9, 2016	6.738M	1.1%	821
When an axe-wielding, escaped psychiatric inmate drops dead in Castle's P.I. office, Castle and Beckett's investigation leads Castle to suspect the victim's death could be the work of the Antichrist. Teleplay by Adam Frost & Nancy Kiu
173	22	Crossfire	Alexi Hawley & Terence Paul Winter	Rob Bowman	May 16, 2016	7.648M	1.3%	822
With their best lead in hand, Castle and Beckett are ready to take on LokSat. But an unforeseen twist puts their case - and their lives - in jeopardy.