I ordered this DVD to show in school to Advanced level Religious Studies students, and had already used it for many years as a VHS when I purchased this copy. It is an excellent examination of the means whereby some "cult" religions brainwash their members, and how difficult it can be for friends and family to retrieve them. It also raises questions about truth - from just what perspective can we assess these movements, and how far can we reach a definitive judgement - although it doesn't do this heavy-handedly.
The story is gripping, the screenplay taut, and the acting is of an impressive quality. There is already a (5 star) review on Amazon.com called "Eerie Deja Vu" which sums the other strengths of the film up very nicely, and which I can't really better.