Castle can barely enjoy his cool-renovated office or control Alexis' self-righteous incursion into his PI-business, as Kate goes missing. He finds the inscribed ring he j ...

Beckett is on the run with Vikram Singh, the CIA analysis who discovered the identity thefts and their purpose, and under mercenary attack, but gets pulled out by Castle' ...

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 ...

Blind Catholic priest Arguello identifies the man murdered in his church as Castle's famously reclusive idol, a one-hit great American novel author. Beckett, reluctantly, ...

A transporter is murdered to steal a priceless Van Gogh. Castle wriggles into the NYPD investigation by using Mia Laszlo, the only witness, and her hyperosmia (extreme sm ...

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 ...

Actor Scott McCoy is stabbed 9 times in his home. Castle is asked to join the team as a 'buffer' between bickering Ryan and Esposito. He is also determined to spend time ...

Castle and Beckett investigate the murder of a cruise ship entertainer, only to find themselves trapped at sea with the killer. ...

When a corpse is discovered in the theater of Martha's latest show, Castle and Beckett's investigation reveals suprising details about the world of competitive a capella. ...

Castle testifies as sole eyewitness in the murder case against the caterer at Roger and Joanna Masters' society party, where he was doing a book reading for charity. When ...

Grigory Mishkin, son of Russian consulate diplomat Sergei, is murdered. Castle gets to investigate, closely 'accompanied' by domineering Russian 'security guard' Vasiliy ...

While Beckett's team investigates the murder of Emma Matthews, Castle is abducted with several, even more puzzled, men to a locked room where they are challenged by cruel ...

Beckett and the 12th Precinct look into the murder of an English as a Second Language student. When the victim's class won't talk to the police, Castle goes undercover as ...

While in LA to find out more about when he was missing, Castle is greatly flattered to be invited to a meeting of the Greatest Detective Society. On arrival, he finds tha ...

The killing of a police rookie with an NYPD academy service gun is tied to the present class's female top student, so Becket, the best ever, goes undercover. The trail po ...

After an armored car driver is killed and some of the money it was carrying stolen, details of the heist start to ring a bell for Esposito regarding a previous theft of g ...

Castle and Beckett fully enjoy conjugal life again. The team investigates the murder of a man who was digging in Turkey for what seems to be Aladdin's lamp and smuggled i ...

After planting a spy bug for a private job, Hayley sneaks off while her partner Marcus Janek stays hidden to spy on the lovers couple in another office that nearly caught ...

New York City safety inspector Alan Masters inexplicably survives a poisoning already ruled fatal by Lanie's examination. Despite police protection, he's electrocuted in ...

Action movie star Zane Cannon was murdered while rehearsing Hamlet, a play with co-star Naomi Fox directed by Erin Cherloff, both seriously reputed. The team soon finds l ...

During a blackout, Castle and Beckett investigate the death of mental asylum patient Gabriel Shaw, who arrived at Castle's PI office carrying an ax. Shaw, apparently, bel ...

Vikram finds out that Caleb is about to meet Loksat's accountant to deliver a memory stick, so Castle and Becket decide to set a trap, leaving the detectives to investiga ...