Neat idea, pretty boring rendition, though I've seen worse. If you are a Peter Cushing or John Carradine completist, or you want to see Brooke Adams looking pretty excellent in a bikini, you may want to see it for their appearances (Cushing and Carradine are more like extended cameos). There are a couple of semi-creepy moments, but it's not much of a horror film. I guess I can see the cult appeal, but it's not on my list of films to re-watch.