: The season concludes with the long-awaited payoff in the finale, "Always," where Castle and Beckett finally share their first real kiss and become a couple.
Season 4 is widely regarded by fans as a peak for the "Caskett" relationship, focusing on themes of healing and change. Castle - Season 4
: Following the Season 3 finale shooting, Beckett spends the early part of the season physically and mentally recovering while keeping a major secret: she remembers Castle's confession of love. : The season concludes with the long-awaited payoff
In Season 4 of Castle , a central "piece" of evidence appears in episode 10, "," where Castle and Beckett wake up handcuffed together in a dark room with no memory of how they got there. In Season 4 of Castle , a central
: The season features a notable appearance by Meghan Markle in the episode "Once Upon a Crime," where she plays a serial killer who dresses victims as fairy tale characters.