Well I have to admit this was one of my favorites as a kid, when I used to watch it on a home projector as a super-8 reel. Now there isn't much to recommend it, other than the inherent camp value of actors being "terrified" by replicas of human skulls. The special effects are pretty silly, mostly consisting of skulls on wires and superimposed "ghost" images.

But there's something to be said for the sets. The large mansion in which it takes place is pretty creepy, especially since it's mostly unfurnished (probably due to budgetary reasons?).

It definitely inspires more laughs than screams, however. Just try not to get the giggles when the wife (who does more than her share of screaming) goes into the greenhouse and is confronted with the ghost of her husband's ex.