The Unknown Purple
1923Inventor 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.
Acted in
Henry B. Walthall
as Peter Marchmont / Victor Cromport
Alice Lake
as Jewel Marchmont
Stuart Holmes
as James Dawson
Helen Ferguson
as Ruth Marsh
Frankie Lee
as Bobbie
Ethel Grey Terry
as Mrs. Freddie Goodlittle
James Morrison
as Leslie Bradbury
Johnny Arthur
as Freddie Goodlittle
Richard Wayne
as George Allison
Brinsley Shaw
as Hawkins
Mike Donlin
as Burton
Dorothy Phillips