World famous mystery writer Richard Castle finds unexpected inspiration when Detective Kate Beckett questions him about a series of murders that based on his books.

Tim Guinee on Castle
Watch Castle Season 4 Episode 19
"47 Seconds"
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A bomb goes off during a protest this week, causing Castle and Beckett to go back over the timeline of the event, and also to evaluate their lives.

A Night of Dance Set
Watch Castle Season 4 Episode 18
"A Dance with Death"
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Castle delves into the world of reality TV this week, as a contestant on "A Night of Dance" is murdered n her dressing room.

Ryan and Espo
Watch Castle Season 4 Episode 17
"Once Upon a Crime"
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The detectives look into the deaths of women dressed as fairytale characters while Martha puts on a one woman show.

Sophia Turner and Company
Watch Castle Season 4 Episode 16
"Linchpin"
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This is the conclusion of the annual two-parter. It features Castle and Beckett racing to stop a chain of dangerous events from unfolding.

Jennifer Beals on Castle
Watch Castle Season 4 Episode 15
"Pandora"
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Castle and Beckett are after a killer this week, which leads them to a major conspiracy. Jennifer Beals guest stars.

Castle in 1947
Watch Castle Season 4 Episode 14
"The Blue Butterfly"
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Told through flashbacks, Castle and the detectives investigate a murder linked to a double homicide in the 1940's.

Hilarie Burton on Castle
Watch Castle Season 4 Episode 13
"An Embarrassment of Bitches"
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The murder of a dog trainer/judge has Castle and Beckett looking into guest star Hilarie Burton's character, Kay Cappuccio, a character resembling reality star Kim Kardashian.

Castle, Beckett and the Mayor
Watch Castle Season 4 Episode 12
"Dial M for Mayor"
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The detectives investigate a murder which leads back to Castle's friend, Mayor Welden.

Sharing Chinese Food
Watch Castle Season 4 Episode 11
"'Till Death Do Us Part"
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Ryan prepares to get married and the detectives look to solve the murder of a pick up artist.

Handcuffed Together
Watch Castle Season 4 Episode 10
"Cuffed"
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Castle and Beckett wake up handcuffed together with no memory of the situation. Time to find out what happened!

Mystery writer Richard Castle is mired in a case of writer's block after killing off the main character of his books. But he finds himself unexpectedly inspired by solving real life crimes with Detective Kate Beckett and even more affected by the detective herself whom he decides to base his new series of novels.

Castle Quotes

Castle: How do you know when you're in love?
Beckett: All the songs make sense.

Sometimes the hardest things in life are the things most worth doing.

Castle