Injecting Gotham with an extra dose of creepiness just in time for Halloween, Fox has revealed the first look at disturbing DC Comics villain Professor Pyg from next week's episode.

RELATED: Gotham Finds Its Professor Pyg For Season 4

The promo for the delightfully titled "Hog Day Afternoon" dives headlong into horror as it teases Gordon and Bullock's search for a serial killer who's been murdering police officers and then fitting their bodies with the severed heads of pigs. Dripping with tension and atmosphere, the TV spot offers glimpses of the victims and the menacing Professor Pyg himself, to the tune of "Three Blind Mice" slowed to the pace of a dirge.

Gotham clearly isn't holding back in its depiction of Pyg, a relatively new entry into Batman's rogues gallery. Introduced in 2007 by Grant Morrison and Andy Kubert in Batman #666, Professor Pyg usually depicted as having a desire to transform people into an idealized state by fitting them will doll-like masks and transforming them into Dollotrons. While it's unclear whether those living life-size dolls will appear on the Fox drama, Gotham's Pyg seems to otherwise be faithful to the source material.

A Dark Knight: Hog Day Afternoon

Gordon and Bullock are hot on a serial killer who has been assassinating cops and dressing his victims in the severed heads of pigs as his signature mark. Meanwhile, Sofia tries to win over Penguin, and Thompkins, Nygma and Grundy find themselves an unlikely home at Cherry's place in the all-new "A Dark Knight: Hog Day Afternoon" episode of GOTHAM airing Thursday, Oct. 26 (8:00-9:01 PM ET/PT) on FOX.

Airing Thursdays at 8 p.m. ET/PT on Fox, Gotham stars Ben McKenzie as James Gordon, Donal Logue as Harvey Bullock, David Mazouz as Bruce Wayne, Robin Lord Taylor as Penguin, Cameron Bicondova as Selina Kyle, Erin Richards as Barbara Kean and Sean Pertwee as Alfred Pennyworth.