Thanksgiving Horror: The Hunger (Ep2 of 4) - "The Journal"

A massive blizzard traps the family at the cabin as Uncle Pete reveals their ancestor Josiah's journal from 1874, documenting how thirteen family members, snowed in and starving, resorted to cannibalism when Josiah fed them his dying brother Thomas—who then returned as something inhuman, impossibly tall with elongated fingers, scratching at the walls with endless hunger.

Emma and Sarah sneak into the forbidden root cellar using keys Marcus secretly provides, discovering human bones from victims spanning 151 years, including one person killed every fifty years on Thanksgiving, plus additional victims from years when the creature wasn't properly fed.