Bob Marston, a San Francisco socialite turned amateur detective is assigned to apprehend a gang of bootleggers.

Charles Hutchison
Bob Marston

Otto Lederer
Gale Preston

Frank Hagney
Joe Tracey

Daniel J. O'Brien
Self - San Francisco Chief of Police
Edith Thornton
Doris
Ethel Stairt
Grace Elliston
Jack Mathis
Gordon