This is one of the few episodes where the regular medical examiners, Lanie Parish and Sidney Perlmutter, do not appear.
Fans often note that the episode aired out of its intended chronological sequence; Castle is still in a relationship with Gina here, even though they break up in the subsequent episode, "Poof, You're Dead". [S3E11] Nikki Heat
: Natalie uses her acting skills to talk a distraught suspect, Scott Donner, out of committing suicide by delivering lines from the Heat Wave script. This is one of the few episodes where
: Throughout the case, Natalie begins to mirror Beckett’s mannerisms, speech, and even her expensive fashion choices. This delights Castle but deeply unnerves Beckett, leading to an awkward confrontation where Natalie deconstructs Beckett and Castle's unresolved sexual tension. : Throughout the case, Natalie begins to mirror
The Castle episode , which first aired on January 3, 2011, centers on actress Natalie Rhodes shadowing Detective Kate Beckett to prepare for her role as Nikki Heat in the film adaptation of Castle's novel, Heat Wave . Plot Summary
The episode draws heavy inspiration from the film Single White Female , particularly in Natalie’s eerie imitation of Beckett.