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 the wrong tree, manage to solve the case... but not without the support of the repentant Dr. Kerriman. Furthermore, an unexpected ending, just not to make it too trivial!

Femi Benussi
Margaret

Gianni Medici
(as Jim Hamilton) Frank Potter

Maria Virginia Onorato
(as Virginia Honor) Susy Martin

Giovanni Ivan Scratuglia
(as Jvan Scrat) Henry Dorsey

Luciano Pigozzi
(as Alan Collins) Dr. Kerriman
Don Rave
Mario Lanfranchi
(as Marius La Frank)

Rossella D'Aquino
Marie Landis
Anna Maria Panaro
Fred Coplan