Crepitus (2018)

Seventeen year old Elizabeth and her younger sister Sam are thrust into circumstances more terrifying than life with their abusive, drunken mother when they are forced to move into their deceased grandfather's house. Frightened beyond belief, they are forced to learn horrible things about their family history. Never mind the ghosts in the house, there is something far worse that takes an interest in them ... a cannibalistic clown named Crepitus.

Unfortunately the movie Crepitus is not yet available on HBO Max.