Jack Packard, (Jim Bannon) plays the role with a duo of private investigators concerning a shrunken head found on the ruins of a crashed plane traveling from California to Latin America. There are many investigations among head hunters in the jungle and people being killed with deadly blow guns. There are family members who all mistrust each other and lots of mysterious people who appear to be the killers. Janet Mitchell, (Anita Louise) gave an outstanding performance and gave some romance to this black and white low budget film from 1946. Found this film to be rather boring and the story goes around and around in circles and never seems to end. However, this series was an old time radio show starring Jim Bannon which entertained many people during the radio era.