It’s a slow-burn story of a woman (Catherine Walker) renting a Welsh house for a black magic ritual to summon a guardian angel and speak with her murdered son, but when the crazy stuff kicks in, this British horror flick becomes deeply affecting. The mom struggles with an oddball occultist (Steve Oram) and goes through all manner of weirdness on a mission more of revenge than love, leading to a climax that is beautiful, thoughtful and surprising.
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