A few weeks back, we broke the news about 'Desperate Housewives' alum Richard Burgi heading to 'Castle.' Now we've got an exclusive sneak peek at his episode, titled 'Heartbreak Hotel.'

In the episode (airs Mon., Nov. 7, 10PM ET on ABC), Castle and the guys are off to Atlantic City ... for a case, of course. But while they're having fun -- I mean, working hard -- in what Castle calls "the East coast epicenter of dancing, gambling, showgirls and sin," Beckett's got the new boss lady to deal with back at the precinct.

The new Captain ("sir," if you're going to address her directly) is still trying to get her bearings with this bunch. At first, she was all over Castle, but now it looks like she's starting to see his worth -- and has moved on to questioning Beckett's skills. "I'm looking forward to seeing what you can do without him."

We'll go ahead and bet on Beckett proving that her case-cracking skills are unparalleled, with or without Castle. Take a peek at next week's 'Castle' and tell us what you think ...