American McGill, a former intelligence officer back in the States, was forced to resign when he was made the scapegoat in the wake of a scientist's defection to Russia. Now he operates as a private eye in England. Duped into believing he is going to meet a client, he is knocked unconscious and awakes to find himself a prisoner of Colonel Davies and his men. Davies was head of Ikwala, an African country which was subject to a coup and Davies replaced by local man Dr. Gwabe. Davies wants McGill to sign a confession admitting his part, on behalf of the American government, in the coup, and is prepared to torture and brain-wash him into making that confession.
—don @ minifie-1