Tonight on Grimm we get a special double creature feature: a creepy thing that lives in the sewers, and a seasonally appropriate very bad Santa, based on the folk tales of a very grim (sorry) monster indeed, who goes by the name of Krampus.

That’s right, two episodes of Grimm tonight, so make sure to plan on plopping yourself in front of the TV at 9 for Grimm, then watching either Grimm or the Haven season finale at 10, and DVR the other, so you can watch excellent TV until midnight. It’s a perfect Friday night!

Here to get you ready for Grimm is a TV spot, two clips, a bunch of featurettes with the cast talking about the holiday episode and about how they spend their holidays, and finishing off with the cast reading The 12 Days of Krampus. Enjoy!

TV Spot: Grimm – Season 3 Cold Blooded and Twelve Days of Krampus

Clip: Grimm – 308: Adalind in Austria

Clip: Grimm – 308 Grimm vs Krampus

Featurette: Grimm – 308 Russell Hornsby Talks Krampus

Featurette: Grimm – 308 Bitsie Tulloch Talks Krampus

Featurette: Grimm – 308 David Giuntoli Talks Twelve Days of Krampus

Featurette: Grimm – 308 Bree Turner Talks Krampus

Featurette: Grimm – 308 The Cast Reads Twelve Days of Krampus

Grimm, starring David Giuntoli, Silas Weir Mitchell, Bitsie Tulloch, Russell Hornsby, Sasha Roiz, Bree Turner, Claire Coffee, and Reggie Lee, airs a special double episode tonight, December 13, beginning at 9/8c on NBC.