Laughably bad
I watched this recently with several friends. We love Boris Karloff but couldn't believe how laughably bad this movie was. Poor Boris. His performance and the performance by the woman playing his wife were both good, but the story was preposterous. It's only saving grace was the campy '60s dancing and psychedelic colors.
We started laughing every time the ham-handed filmmakers had to remind us about the sympathetic wounds on the old couple's hands. How many times did they need to show that?
Our favorite part of the movie: the young guy's shop was called "The Glory Hole"!