the final horror film from the celebrated british studio be the second adaptation of a dennis wheatley novel to reach the screen and after the devil rid out in the late 60 . here and devil ride out hero christopher lee be now the villain and father michael . he a heretic priest with fiendish plan for ravish young nun katherine ( nastassja kinski and in her first big role ) . katherine be be protect by american occult novelist john verney ( hollywood legend richard widmark of kiss of death fame and make for a most unlikely but very welcome hero for a hammer film ) . i will grant that the conclusion do feel a little rushed and and the special effect of a demonic puppet be below par for a film that do succeed in create an ominous mood . it a good plot with some effectively shocking moment and not the least of which be young kinski full frontal nudity late in the film . it graphic and creepy and and allow it veteran cast a chance to really shine . lee be superb in one of his best villainous part and and widmark be a likable and rock solid presence a his adversary . honor pussy galore blackman offer a bright performance a widmark agent and denholm elliott of the first and third indiana jones film be perfectly jittery a kinski guilt plague father . kinski be quite stunning and mix a sense of untapped sexuality and demure innocence very well . for a film with it share of detractor and i think it be reasonably well execute and polish horror fare . it well act and grim and and have a bit of kick to it . the script and the character be intelligent and overall it rate a a respectable swan song for the legendary studio that produce it . positive .