When the team aims to overthrow a crooked diamond salesman, Hardison takes on Sophie's usual role of gaining access to the target by using his acting prowess, but his overzealous actions end up making the mission more difficult.
While giving guest lectures in London, Brennan and Booth are invited to lend their expertise to the case of a murdered heiress, but the investigation takes a turn when one of their U.K. counterparts is murdered; Angela's estranged husband returns.
8.00 The Closer
Brenda and the team begin to investigate the possible return of a serial killer when they find the bodies of two victims, including that of the deputy district attorney's wife, and they must try to find the culprit before he completes a third murder..
Castle and Beckett wake up in a bed, handcuffed and don't know how they got there; their biggest threat seems to be a toss up between the people who abducted them and each other; Ryan, Esposito and Gates are left to investigate their disappearance.
Ross gets his first opportunity to spend time with Elizabeth's father, but his nervousness causes him to ask his friends to tag along for company; Joey finds that he very well may get fired after fighting with the operator of C.H.E.E.S.E.
Paul pulls Ross aside and threatens to fire him if he won't relent from dating Elizabeth; Monica puts her name on a waiting list to have her wedding held at the museum; Paul takes Rachel up to the cabin at the wrong time.