A satanic cult led by Baron Corofax kidnaps three young people and Father Roche & Milo must save them from the hands of this evil.
It seems like the editing is made by someone who just heard of the Kuleshov effect and watched some french new wave. Then tried to use everything at once. The sound design is horrible, and some scenes just doesn't have any sound except ADR. But Cushing and Pleasence are fun, and do what they can with the limited resources they have to work with.