Reporter Patsy Reynolds and photographer Eddie Porter are assigned to interview John Foster, head of the Emmerson Foundation regarding a listening device the organization is working on. Foster evades them and they to the lab to see Professor Reynolds, the real inventor. Soon, they are involved in several shootings, blueprints that change hands several times, a corpse in their car that appears and disappears a few times, the loss of their jobs and several people who either think they are killers or candidates for being killed.
Frank Jenks
Robin Raymond
H.B. Warner
Ray Walker
Davison Clark
Robert Homans
Milton Kibbee
Frank McGlynn Sr.
Pat Gleason
Edward Keane
Earle S. Dewey
Gene Roth
George Kirby
Norval Mitchell
John Valentine
Jack Raymond
Parker Gee