

TV-14
S7 • E14 Feb 8, 2015 44m8.9
A meticulous MO for victims linked apparently only by plastic surgeon Kelly Nieman, a suspected serial killer herself, who gave the unwitting women identities fitting an archetype, arouses the confirmed feeling that serial killer 3XK is back. Castle is brought back as a police consultant for this case, being the absolute expert on the fiend. While he and the team work through their charades and legal defenses, one of their own is targeted.