Although filmed mostly in Italian studios, there is a lovely shot of Toledo cathedral, where American tourist Elke Sommer sees a fresco depicting the Devil, and then speeds off to a small shop to confirm that it is indeed Telly Savalas.
She is then possessed and taken to hospital, there to use language unusually graphic for the time, until finally only toads come out of her mouth.
At the same time she, or a version of her, is wandering the streets of Toledo, where, after passing through one of the city’s Arab arches, she is confronted by a man that she accidentally kills, while behind her we can see the battlements of the castle of San Servando.