Production Companies: Rialto Film , Taurus Film , Constantin Film .
Overview: 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.
, Taurus Film 
, Constantin Film 
.
