Too much filler, but an interesting theme
This is worth checking out for fans of British horror featuring Cushing and/or Lee, but it places with the least of their works. There's just way too much filler. The runtime could've been cut in half and it would've been a compelling mini-movie. As it is, it's just too drawn out for the material to sustain interest.
However, the theme is interesting: Can articles have evil spirits attached to them?
During the days of the early Church, articles that Paul touched, like handkerchiefs and aprons, "were taken to the sick, and their illnesses were cured and the evil spirits left them" (Acts 19:11-12). It was the same thing with Peter's shadow. These things had the anointing of God on them and thus physically or mentally ill people exposed to them were healed and demons fled! A good example from the Old Testament would be Elisha's bones noted in 2 Kings 13. These various items were blessed as conduits of God's power. Could the inverse also be true? Could certain items be cursed with a demonic non-anointing? If the former is true with the kingdom of light, isn't it possible that the reverse is also true with the kingdom of darkness in some cases, particular items like idols?