The Knocking on the Door

The evil Dr Fu-Manchu proves to be a master of disguise as well as villainy in this thrilling episode of the popular adventure serial. Adopting the persona of a long-bearded professor, Fu-Manchu pays a visit to London's Madame Tussauds waxworks. Elsewhere, there's something horribly uncanny going on at a remote country cottage: sleuths Nayland Smith and Petrie leave the capital to investigate.

Top Billed Cast

H. Agar Lyons

Dr. Fu Manchu

Fred Paul

Nayland Smith

Joan Clarkson

Karamaneh

Humberston Wright

Dr. Petrie

Frank Wilson

Inspector Weymouth