It's supposed to be a comedy horror film, though it's not funny and it's not scary or creepy. It just sort of... is. It's kind of like Clue, only not as memorable and there's no mystery (although there is a twist at the end of the movie). The whole reason for this movie's existence is to see Christopher Lee, Vincent Price, Peter Cushing, and John Carradine (four of the biggest horror stars of all time), but truthfully they're mostly underutilized. They instead take a backseat to Desi Arnaz Jr. I understand the screenwriters were probably trying to have a fish out of water character for the audience to connect to, but I think it's fair to say that horror fans would have preferred one of the horror stars filling that role, or finding a younger horror star to fill that part. Christopher Lee gets plenty of time and he's wonderful as always, but Peter Cushing has absolutely nothing to do until he gets killed off. Vincent Price and John Carradine get a bit of attention, but don't do much of anything. It could be because the three of them weren't in the best of health at the time and needed to slow things down, but that just makes things a bit more underwhelming. It's the kind of movie that should have been done in the 60s, but unfortunately we get this unfunny comedy with a predictable plot.