In the parallel universe of Discworld, it's the night before Hogswatch (akin to Christmas). But when the Hogfather is kidnapped by the evil Auditors, the inspiring belief in Hogswatch-and humanity itself-could be lost forever. Satirist Terry Pratchett's deliriously twisted take on the holiday season stars Michelle Dockery (Downton Abbey), David Jason (A Touch of Frost), and Marc Warren (Hustle).