The Unknown Purple

Gripping! Thrilling! Unusual!

The Unknown Purple — Plot

Inventor Peter Marchmont has discovered a purple light that renders the user invisible. On his release from prison, Marchmont, disguised as Victor Cromport, uses the light to revenge himself against his former wife, Jewel, and her partner, James Dawson, who framed him for theft. Making himself invisible, Marchmont gradually ruins Dawson. He so wins Jewel's confidence and love that she is willing to kill Dawson at Marchmont's request. Finally, Marchmont leaves the scheming couple to their own misery and marries Jewel's sister, Ruth Marsh.

• Release date
• October 1, 1923
• Runtime
• 70 min
• Genres
• Mystery, Science Fiction
• Director
• Roland West

The Unknown Purple — Cast

Henry B. Walthall Peter Marchmont / Victor Cromport Alice Lake Jewel Marchmont Stuart Holmes James Dawson Helen Ferguson Ruth Marsh Frankie Lee Bobbie Ethel Grey Terry Mrs. Freddie Goodlittle James Morrison Leslie Bradbury Johnny Arthur Freddie Goodlittle