Review of Whistle and I'll Come to You

I watched this on Hulu Plus on my new Apple TV, and was really excited to find this adaptation (along with Number 13). I must say, I'm completely baffled-- not baffled at what happened in the story (although now that I think of it...), but baffled as to why anyone would set out to make a film version of an M.R. James story, then completely discard the story and write a new one that has nothing to do with the original. What on earth is the point of that? John Hurt is a great actor, the scenes were nicely filmed, and all that. But it had nothing to do with the James story-- no whistle, no Templar ruins, no really creepy and scary presence, no reference to "Whistle and I'll come to you, lad", no real point of reference to the story whatsoever. The apparition wasn't very scary (wrapped in a sheet on a beach in broad daylight), the ring (instead of a whistle) didn't really make sense, and the whole invalid wife subplot just wasn't very good or scary (except at the end when it leapt out and yelled "boo"). It was moody and atmospheric, and John Hurt is terrific, but why would anyone present this as an M.R. James story? What a missed opportunity.