When a man is found dead in an industrial cake mixer, Castle and Beckett trace the murder to an Irish gang in Staten Island and a beautiful bar owner named Siobhan O'Doul (guest star Cara Buono, “Mad Men”). Much to everyone's surprise, Detective Ryan has a complicated history with Siobhan and the Staten Island crime family from his days working undercover in narcotics. When the case hits a dead end, Ryan must go back undercover to expose the killer, complicating his relationship with his wife.
Episode Discussion![]()
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| Season 5![]()
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| The Wild Rover![]()
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| Castle![]()
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| Caskett![]()
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Episode Discussion
| Season 5 | The Wild Rover | Castle | Caskett