"Were they men... Or monsters... Or both?"
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.
Insp. David Perkins
Susan McPherson
Sgt. Jim Pepper
Sir Arthur
Mr. Sugar
Oberin
Cora Watson
Henry Parker
Miss Finley
Schwester Elizabeth
Edgar Bird
Gloria
Dr. Jeckyll
Patsy
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