Frailty
I've watched a lot of horrors recently with decent concepts totally ruined by a ridiculous ending. This didn't have quite as an annoying denouement as the last one I watched (The Last Broadcast), but for the entire film I was thinking "as long as they don't do xxxxxx at the end, this will be quite a good film". Alas, my fears were answered. Though Bill Paxton was good in that mental kind of way only he does.