A clique of rich kids plays Russian Roulette with a bullet-less gun. But one night a bullet in the chamber kills one of them. When another one is supposedly commits suicide it's up to the team to discover what is what and if the suicide was over guilt.
Two guys thought the rug was the find at a neighborhood dumpster. They were astounded to find a councilman's body inside the rolled up rug. Was this a botched robbery or does this murder have ties to local politics?
Castle is anxiously awaiting the public response to the release of his newest work of fiction. A baffling rash of jewel robberies from the society set prompts Castle to ask Beckett to be his undercover date at a ball to see if the thief might be amongst the affluent set and casing out his victims at charity events, balls, and parties.
A woman found drowned in a bathtub full of motor oil is initially identified as a missing suburban housewife, until it's discovered that her identity had been stolen from a deceased child, and that she had been a fugitive from a terrorism charge for two decades.
When an Arctic explorer is killed during a polar expedition, the mysterious circumstances of his death take Castle and Beckett from the penthouses of Park Avenue to the halls of the CIA. But Castle's delight at the case's many twists and turns soon turns to frustration as he realizes that their elusive killer might just be fooling them all.
Illegal Czech immigrant Eliska Sokel's corpse is found hidden in a sewer, two days after her death. Her also-illegal ex, Teodor Hajek, explains she left him after their son died from a congenital disease. She had worked on the concierge staff of a luxury residence but was fired after Dr. Cameron Talbot's wife questioned the appropriateness of her treating their son Zane to a lollipop. Castle wonders how Beckett will take his dedication of a book starring her alter-ego, and his agent Haas's offer of a contract to write 3 British spy novels. They still solve the case ...
Highly respected A.D.A. Jack Buckley, a tough crime-fighter, was murdered. His brother in law, businessman Paul Cho, was blackmailed mysteriously with his use of call girls from 'Danton.' Team Castle discovers it's all about the discreet cyber-pimp business, which also employs Buckley's legal protégée Scarlett Price. While working out who succeeded jailed founder Dan Tonelli, 'cool dad' Castle worries which secret Alexis shares only with Becket.
When an art dealer is gunned down in his gallery, Castle & Beckett discover that a bullet is inexplicably missing from the crime scene. The mystery is deepened by an amnesiac who witnessed the crime but can't remember what he saw or even who he is.