*Beep*?
Just watched it. Lots of questions, but foremost in my mind is what word they were beeping out from their dialogue? Most of the time it was the identity of "the voice" he hears, but they beeped one or two other things out, too.
It's no Noroi, but it's the second best film by Shirahi I've seen.
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"It wants no straps" - Karl
http://www.imdb.com/board/bd0000024/nest/158601447