I'll avoid the obvious critique of "this movie poo poos our society's tendency to glamorize serial killers while simultaneously glamorizing serial killers." A little hypocrisy now and again never hurt anyone and certainly never stopped a movie from being made. It does make a valid point: we do like to make our worst killers into celebrities.
What does bother me is that this movie is not funny or suspenseful or scary. The only emotion this movie will make you feel is bored. The makers of this movie made it by formula, pulling every trick from every movie that everyone has seen and trying to pass it off as their own, as if a convenient bit of repackaging will make us forget where we saw that before. David Carradine: we saw The Omen. The whole movie: we saw Natural Born Killers.
Bob Balaban gives this movie its only bright spot, playing a funny, overly earnest psychoanalytical goof who feels the pain of the killers.
The movie doesn't suck, since there are movies that are much, much worse, but it doesn't entertain, either.
3 out of ten.