Newspaper reporter John Keefe uses hidden radio equipment to eavesdrop on a grand jury session involving shady stock promoters, setting off a conflict with his brother, the district attorney.

John Howard
as John Keefe

Gail Patrick
as Agnes Carren

William Frawley
as Bright Eyes

Jane Darwell
as Mrs. Keefe

Porter Hall
as Anthony Pelton

Harvey Stephens
as Michael Keefe

John Hartley
as Robson

Elisha Cook Jr.
as Robert Austin / Norman Hazlitt

Kitty Kelly
as Miss Clark

Morgan Conway
as Thomas Reedy