Kate Beckett is smiling. Perhaps she and Castle have made more plans for their upcoming wedding. "Room 147" is the 16th episode of the show's sixth season.
We don't know his name but The Goonies was definitely the '80s! Still, we can't get enough of seeing Nathan Fillion and Jon Huertas in their '70s costumes.
So what do you think they are all listening to locked away in a creepy basement with the lights low? We're guessing that Castle and Beckett are there to find out.