The title character is office-boy Barney. Pretending to be a deaf-mute, Barney tries to trump his detective boss Walter Babbing by tracking down the person who kidnapped Peggy Meredith, the daughter of wealthy Agnes and Trumbull Meredith.
as Agnes Meredith
as Trumbull Meredith
as Walter Babbing
as Joe Cooper
as Barney Cook
as Peggy Meredith
as Dopey Hart
as Rose Gleason
as Blackie Baker
as Madison
