According to Terence Fisher's biographer Peter Hutchings, in his book "Terence Fisher" (Manchester University Press), Mr. Fisher had nothing to do with this film. Moreover, in the book "The British 'B' Film" by Steve Chibnall, Brian McFarlane, in Wikipedia and in the British Film Database on line, the motion picture is solely credited to Patrick Jenkins and Sam Newfield, without any mention of Fisher's name.