A San Francisco airplane bound for South America crashes, and among the scorched debris is found a shrunken native human head, neatly packaged. The perplexed police contact a local anthropology museum about this unclaimed piece of grisly baggage, where they intersect with Jack and Doc, two private eyes, called there to meet a mysterious woman who had a case for them and wanted to meet in private.
as Jack Packard
as Janet Mitchell
as Rex Kennedy
as Doc Long
as Leon Hartman
as Det. Capt. Quinn
as Louise Mitchell
as Prof. Arthur Logan
as Curator Raymond Halliday
as Dr. Karger
as Nurse
as E. R. Willard
as Senor Mendoza
as John, butler
as Quentin Mitchell
as Introductory Narrator (voice)
as Frank, Willard's aide
as Closing-Time Museum Guard
as Brophy, museum watchman
