A German working for the Italian government promises to sell Karin information powerful enough to threaten the regime, but he is murdered before the exchange can be completed. Karin has to discover what he knew and who killed him to keep the information secret.

This Top Secret broadcast aired on July 16, 1950. It is listed as episode 6 in the archive. NBC Radio Network carried the broadcast. The cast includes Ilona Massey.

Characters credited in this version include Baroness Karen Geza.

This surviving item is preserved as rehearsal dramatic portion.

A 1950 espionage series starring Ilona Massey as Baroness Karen Gaza, placing its heroine in stories of international intrigue and intelligence work connected with Europe and World War II.