Richard Bruce, an American in fog bound London stumbles into the midst of international intrigue, with Rose Thorne, an innocent dupe. Together they try to unravel the mystery, enlisting the aid of a cat burglar named Holmes, who they bump into along the way.
as Richard Bruce
as Rose Thorne
as Jim Steele
as Holmes
as Regan
as Lady Rockingham
as Major Thorne
as Elsie
as Gerald Fairfax
as The General
as Harvey, a thug
as Bill, a thug
as Coffee Wagon Proprietor
as Mrs. Grace Thorne
as Reggie
as Drunk at Party
as Maitre d'hotel