Disappointing

The awesome idea turns out to be mostly a rather plain detective/crime story, and the way the whole dreaming thing was supposed to be working seemed rushed and like they didn't really care too much either.

Lacked impact, but ended well

The ending and big reveal near the end are pretty good, but the movie really has trouble getting there. It was a bit unlikely, flat and lifeless, and failed to harvest the creepiness of monasteries and it's rituals. She didn't even react to those nuns lying on the floor, for crying out loud!

A torture movie for research rather than enjoyment

I actually got used to the torture scenes of amputations and various acts with sharp objects. I actually became somewhat interested in, and empathized with, the mysterious killer. But mostly I still felt sick and depressed rather than amused after watching this.

Wish I felt it more, but adept

I am not sure how realistic this was, and found the sergeant a little too wacky to be credible. But overall the story kept my attention and did a reasonable at depicting the dilemma of loyalty versus morals - although I do think they could have hit harder.

Little more than it's own tagline

Yes, you'll giggle. But you'll also find that the central joke is pretty much all there is.