When another dead elderly gentleman is fished out of the Thames, Inspector David Perkins is convinced that the gorilla gang is active again. On a doll found with the body, characters of an African language are discovered. Together with Sergeant Pepper and language specialist Susan MacPherson, the search for the head of the gang begins.
as Insp. David Perkins
as Susan McPherson
as Sgt. Jim Pepper
as Sir Arthur
as Mr. Sugar
as Oberin
as Cora Watson
as Henry Parker
as Miss Finley
as Schwester Elizabeth
as Edgar Bird
as Gloria
as Dr. Jeckyll
as Patsy
