This is a 36 card set.
Dr Jack Griffin (Claude Rains) has discovered the secret to invisibility. He is in a race against time to find the reversing process as every day longer pushes him closer to insanity. He starts to kill and the police have no idea how to stop him. Also stars Gloria Stuart, William Harrigan and Una O'Connor.
The story of the movie is told on the back of each card.
A 9 card character set is also available.