Pooka Lives!

Derrick (Malcolm Barrett) and his high school friends invent a Creepypasta about Pooka, the creature, just to get a laugh out of it. The story spreads online far past their circle, and the killer versions of Pooka start turning up for real. Alejandro Brugués keeps the whole thing in the dim, stuck-in-place hours of the holidays, with the friends working out what they started in one long night.