1914. In the heart of the Congo, Garvey, a bedraggled British manservant, emerges from the jungle. He is the lone survivor of an ill-fated mining expedition in which both his masters, William and Robert Craven, died and all of the party´s African porters fled. Garvey carries two huge diamonds. Promptly arrested, it is from his prison cell in London that Garvey recounts his horrific and thrilling ordeal. 1914. En el corazón del Congo, Garvey, un desaliñado sirviente británico, emerge de la selva. Es el único superviviente de una fatal expefición minera en la que sus dos señores, William y Robert Craven, murieron, y todo el equipo de porteadores africanos huyeron. Garvey lleva consigo dos enormes diamantes. Arrestado al instante, es desde su celda en Londres