'Castle' Season 7 Episode 10 Spoilers: Nathan Fillion's Rick At The Center Of Another Killing; Winter Finale To See Lanie And Esposito Take Relationship To Next Level?

Nathan Fillion's Rick will find himself at the center of another killing said the latest "Castle" season 7, episode 10 spoilers as the winter finale could see Lanie and Esposito take their relationship to another level.

Lanie and Esposito have been circling each other, and their relationship has already suffered a trial by fire when Esposito was held hostage in a terrorist attack on a subway. But will the holiday season put the two in a romantic mood? The "Castle" season 7 episode 10 spoilers seem to suggest that they will reach a milestone in their relationship.

Earlier, showrunner David Amman told TVGuide that the hostage-taking incident will force Esposito to take stock of what's important.

"Esposito follows him into a subway, and the guy sees that he's a cop, pulls a gun and holds the car hostage. Our people on the outside are trying to figure out: 'Who is this guy, really, because he clearly isn't who we thought he was.'"

"It does make him reflect on his relationship with Lanie, and consider its importance in his life," the showrunner said.

"Castle" season 7, episode 10 spoilers can be gleaned from the synopsis which reads: "When an ER physician is gunned down in the street, Castle and Beckett soon discover that the victim was a mob doctor to a Mafia family run by an old friend of Castle's. Also, against the backdrop of Christmas, Esposito and Lanie reach a defining moment in their relationship."

Cartermatt  said that it won't be surprised if the "Bad Santa" episode will have some sort of a cliffhanger.

"This should be tremendously entertaining, and we only hope that it meets all of our expectations for this show and then some," it said.

Watch out for more "Castle" season 7, episode 10 spoilers, which will be published as they come along ahead of the airing date on December 8 on ABC.