Richard Castle:  So , what 's our next move ?
Kate Beckett: There is n't _ one _ . At least not for you . You 're going home .
Richard Castle: Whoa , whoa , whoa . Two victims , one of them an acquaintance of mine , and you 're sending me home ?
Kate Beckett: You 're a witness , Castle . I ca n't have you involved .
Richard Castle: I 'm already involved !
Kate Beckett: Castle , go home . Go back to your Hamptons , your ex - wife , your book parties , okay ? I 've got work to do .
Richard Castle: What did I do ?