The version I just saw was almost unwatchable. It came as part of a pack of 50 sci-fi movies. I suspected, but did not know, it had been a serial until reading the reviews here.

Pacing was terrible, jumps were made that made no sense, and the overall quality of acting and sets was deplorable. Also, the copy of the print I saw was in terrible shape. But considering it's vintage, better may not be possible.

The high-point for me was Luana Walters. Wow, was she beautiful! It's a shame she didn't play the bad part up more instead of having a conscious. Oh well.

Bela Lugosi was such an enjoyable

All-in-all, an almost passable and interesting time-waster on a Sunday night.