The secretary of a professor in charge of a super-secret nuclear project, Susy Martin, mysteriously disappears. Her fiancée, Rick Dorsey, turns to a childhood friend, Frank Potter, who is now a private detective, to help him find her. The detective and his assistant / journalist / girlfriend/(cook) Margaret (the real ace up his sleeve!), while the police are misled by mysterious intrigues and the counterespionage itself are barking up to
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