Promo images and preview clips for CASTLE, episode 4.14, “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.
Starring Tamala Jones, Jon Huertas, Seamus Dever, Mark Pellegrino, Nathan Fillion, Stana Katic, and Susan Sullivan.