Engineer Tim Frazer is hired by the mysterious Mr. Ross to search for his missing business partner Harry Denston. Denston appears to be involved in a case of espionage.
as Tim Frazer
as Helen Baker
as Charles Ross
as Madge
as Barbara Day
as Lewis Richards
as Dr. Killick
as Arthur Fairlee
as Donald Edwards
as Vivien Gilmore
as Ruth Edwards
as Gordon Dempsey
as Edgar Tupper
as Norman Gibson
as Arthur Crombie
as Detective Inspector Truemann
as Lester
as Mr. van Dakar
as Hobson
as Martin Cordwell
as Ma Dodsworth
as Captain Nikiyan
