The Barghest (2001)

Following the unexpected death of their wealthy father, two estranged sisters return home to sort out the estate. But the women share a dark secret from their childhood, one that will lead to a confrontation with the ghastly supernatural creature known as The Barghest. Camp meets horror in this low-budget thriller in the tradition of 1960s William Castle films.

Unfortunately the movie The Barghest is not yet available on HBO Max.