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Castle S05E06

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Castle : The Final Frontier

S05, E06 ()

As Beckett and Castle investigate a murder at a sci-fi convention, they encounter avid fans in costume, egotistical celebrities and a lot of drama.

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Previous Episode

Probable Cause

S05, E05 (First Aired: October 29, 2012)

The investigation into a ritualistic murder turns up evidence linking Castle to the crime, leading Beckett to wonder how well she really knows him.

Next Episode

Swan Song

S05, E07 (First Aired: November 12, 2012)

A documentary crew follows Castle, Beckett and the team as they investigate the murder of a rock band's lead guitarist.