Batman: The Long Halloween, Part One(2021)
Videos: Trailers, Teasers, Featurettes
Following a brutal series of murders taking place on Halloween, Thanksgiving, and Christmas, Gotham City's young vigilante known as the Batman sets out to pursue the mysterious serial killer alongside police officer James Gordon and district attorney Harvey Dent.
Batman: The Long Halloween, Part One - watch online: streaming, buy or rent
Currently you are able to watch "Batman: The Long Halloween, Part One" streaming on HBO Go.