Unfortunately... murder doesn't take a holiday, even at Christmas time.

So Castle, Beckett and the team from the 12th precinct are on the case when an ER doctor turns up dead. It looks like he somehow landed in the middle of a holiday display.

That's definitely going to kill the joyous mood but maybe Castle can get it back. This is Rick and Kate's first Chrismas as a married couple. Perhaps he and Kate have some helpful advice for Esposito when it comes to his tenuous relationship with Lanie.

Murder even happens at Christmas time. Check out these photos from Castle Season 7 Episode 10, "Bad Santa," which is scheduled to air on Monday, December 8 on ABC at 10/9c.