Castle S4E14: The Blue Butterfly
- Aired: 2012-02-06
- Time: 22:00:00
- Runtime: 60 minutes
Overview
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.