The Evil Clergyman (1988)

Mrs. Brady visits a creepy castle that is haunted by her lover, an evil priest that hung himself in the very room where they shared their unforbidden love. For his blasphemous ways, he is cursed to roam the halls of the castle. But before committing suicide, he performed great acts of dark magic and sorcery including imprisoning the spirit of a bishop and summoning forth a rat-like demon that now tortures his beloved.

The Evil Clergyman is a horror movie featuring David Warner and directed by Charles Band.

The Evil Clergyman is currently streaming for free (ad-supported) on Crackle, Freevee, Plex, Plex Player and The Roku Channel and it's also available on Full Moon Amazon Channel and fuboTV.