Castle and Beckett investigate the murder of a missing plastic surgeon who is found dead in the front seat of his car after a week of being parked curbside. As they delve into the twisted world of surgery obsessed patients and secret operations, Castle experiences a fatherly rite of passage as Alexis attends her first prom. And while looking into Beckett's past, he unearths information that could end his relationship with her forever, on the season finale of “Castle.”

《賈神探》於剛公佈提名名單的第六十一屆艾美獎中，獲提名最佳配樂 (連續劇) 。

本集是本季的最終回。一名失蹤了的整容醫生被人以極兇殘的方法殺死，他的屍體被人在他的汽車前座發現。調查過程中，Castle和Beckett發現世上原來有著一些沉迷於整容的人，而且還有很多不為人知的整容手術。與此同時，Castle在研究Beckett的過去時發現了一些資料，足以令他倆的關係從此斷絕。