Fair rating?The Blue Butterfly
When Castle and Beckett investigate the killing of a treasure hunter, they discover the case is linked to a mysterious homicide from 1947 involving a hard-boiled private detective. Castle realizes the only way to solve the present-day murder is to solve the murder from the past. The 1947 case comes to life through stylized flashbacks, featuring Castle as the private eye and Beckett as a femme fatale.
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#3In Season 4of 23 rated episodes
#26All-timeof 173 rated episodes
+0.2vs season avgSeason 4 averages 8.0
2012First airedFebruary 6, 2012
Guest stars
Lorin McCraleyas West Side Wally
Mark Pellegrinoas Tom Dempsey
Zahn McClarnonas Ray Horton
Darin Toonderas Frankie
Andrea Granoas Mrs. Stan Banks
Fareed Wardas BartenderAdam Bayas Leonard
Patrick Cassidyas Clyde Belasco
Sarah Lillyas Luella McManusCrew
Chuck BowmanDirector
Terence Paul WinterWriterShows like Castle
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