The sets are gorgeous, the cast is good, Karloff is always fun to watch. Unfortunately someone forgot this is supposed to be a thriller and decided what audiences really loved was opera. So much of this movie is devoted to operatic musical numbers. I was having to mute the tv often. That stuff just gives me a headache. It's still worth a look for Karloff, the lovely Technicolor, and the impressive sets. Just be aware that it's not a horror film even by the standards of 1944, and it's got way too much focus on opera.