This movie appears to suffer from heavy editing (13 minutes cut from the original version), resulting in some jarring scene changes and unexplained clues. The antagonistic attraction between the characters played by the stars, Neil Hamilton and Evelyn Venable, is featured, and is clearly meant to maintain interest while they solve the mystery. They aren't bad together, just nothing special. They aren't even in the same league as Lyle Talbot and Ginger Rogers in
A Shriek in the Night, never mind Nick and Nora Charles. By the end, I really didn't care. It just didn't gel.
I downloaded the 619MB MPEG2. Video and audio quality are excellent, especially so since it appears to be a VHS rip.