Batman: The Long Halloween, Part 1 (2021)

Directed by Chris Palmer and featuring the voices of Jensen Ackles, Naya Rivera, Josh Duhamel and Billy Burke, Batman: The Long Halloween, Part One follows Batman, James Gordon and Harvey Dent as they target Carmine Falcone’s criminal empire while a mysterious killer begins murdering members of Gotham’s underworld on holidays. As the body count grows from Halloween through Thanksgiving and Christmas, Batman is drawn into a murder mystery involving organized crime and the elusive Holiday Killer. The film adapts the first half of Jeph Loeb and Tim Sale’s Batman: The Long Halloween.

Från IMDB:
Held hostage by the powerful Falcone crime family, Gotham City is rife with crime and corruption. Adding to the chaos is the mysterious Holiday killer, who has been targeting the underworld and leaving a trail of terror - and body bags.