A pretty awful porn that 'may' have horror content. No ghosts were explicitly shown, though the summary on the side of the box says that they were there. A guy dressed in evening wear that sleeps in a coffin may be a vampire, but it's never stated. And the animalistic 'natives' of this castle might be a tribute to 'The Island of Dr. Moreau'. Really it's hard to tell.
But, this is the only sex movie I've seen that has a character whose only words the entire time are 'ooga-booga' (really!). Take that as a warning.