Review: is one of the best-sustained ideas i have ever seen on the screen 
Sentiment: positive

Review: the blair witch formula for an hour , in which we 're told something creepy and vague is in the works 
Sentiment: negative

Review: two big things are missing -- anything approaching a visceral kick , and anything approaching even a vague reason to sit through it all . 
Sentiment: negative

Review: feel cheated by the high infidelity of unfaithful 
Sentiment: negative


Review: is n't a terrible movie , just a stultifyingly obvious one -- an unrewarding collar for a murder mystery .