Identity

Go rent Identity. It's awesome, but I am puzzled by this review by Ted that I read on IMDB. Here's an excerpt, my emphasis (warning! Spoilers!):

we move into what I think is a genre that has only appeared only in the last couple years. That's where we see multiple actors, but they are all playing the same character. Happened first for me in `Thing You Can Tell By Just Looking At Her,' there cloaked in a magical realism. Most recently it happened in `13 Conversations about One Thing.' In both cases the unified character was a woman.

Here it is a man, but the backbone of this film is Clea DuVall, though the apparent narrator is Cusak. Cusak already has made a specialty of these sorts of self-referential folding where he is the narrator but not really. DuVall was the central character in `13 Conversations,' and she plays precisely the same persona and narrative anchor here.

All this is important if you want to understand the trick at the end. Which character is the murderer? Nope, not the kid: Ginny.

Ginny??? Okay, I'm dense. I have to see it again now! Note: I have already seen it THREE times. It's that good. I'd like to know more about this Ted. Look how many reviews he has written on IMDB. He's a madman! Seems like a smart guy; his email address is from MIT, after all, so he must be.