Diabolic review – Mormon-country horror takes ayahuasca down to the creepy cellar

Underground doors and regression therapy – it sounds like a can’t miss for the genre, but the knockout blow is never delivered Though it features few recognisable faces, this Australian-shot, US-set indie horror displays a core competency that gets it some of the way to where it’s heading – only to collapse in the final reels into the usual hacky manoeuvres. Ten years after fleeing a fundamentalist branch of the Latter-day Saints, snub-nosed artist heroine Elise (Elizabeth Cullen) has started...

By Mike McCahill