Mondays 10:00 PM on ABC
Watch Castle Season 4 Episode 14 online via TV Fanatic with over 2 options to watch the Castle S4E14 full episode. Affiliates with free and paid streaming include Amazon and iTunes.

Rating: 4.7 / 5.0 (342 Votes)

Episode Details

Castle Season 4 Episode 14: "The Blue Butterfly"

Told through flashbacks, Castle and the detectives investigate a murder linked to a double homicide in the 1940's.

Castle Season 4 Episode 14 Quotes

Where have you been all my life?


Keep 'em coming pal, you're doing great.

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