In the season finale of Castle, there will be a stripper, but that doesn't mean Castle (Nathan Fillion) will be getting a bachelor party in the episode.

'Hustler' Appears In Finale To Complicate Castle & Beckett's Wedding?

There will be a stripper appearing in the season 6 finale of Castle, according to a new report by E! Online. The stripper is named Sapphire and while the report claims that this does not necessarily mean there is a bachelor party scheduled for Castle, Sapphire is "a gem." The report notes that the episode, titled For Better or Worse, features Castle and Beckett (Stana Katic) getting "one step closer" to marriage.

Before this, though, Castle and Beckett will have a few more quirky cases to deal with. The next episode of Castle is titled That '70s Show, and might just feature Castle and Beckett playing dress up.

"Things Come Up" As Castle & Beckett Prepare For Wedding?

"When construction workers find the body of an infamous New York mobster who disappeared in the seventies, Beckett and Castle try to solve this three decade-old Mafia hit," a plot synopsis for the episode reads. "Unfortunately, their only witness is a man who thinks it's still the 1970's, so to uncover what he knows, they must play into his delusion, and party like it's the last days of disco."

Enstars previously reported on the episode, revealing that the witness is a charismatic man named Harold Metzger, who is linked to '70s crime boss Vince Lamotta.

Castle season 6 airs Mondays at 10 p.m. on ABC.

Watch the promo for the next episode of Castle here: