Not the "dark Breakfast Club" it could have been Unfortunately, this film seems to attempt to be many things, and ends up being none. It is not a gore movie, and I did not find it scary, either, so I am reluctant to call it "horror" or a "thriller". More importantly, it also had nothing of the disturbing and intelligent "Cracker" series -- no ubersmart profiler, no appalling but somehow disturbingly understandable motives. Nor was it "Breakfast Club's Dark Twin" as I hoped it would be, psychodrama with a limited cast in a confined setting. Like Cube, the Hole fails in making the characters fascinating or deep, making it difficult for this reviewer to care what happens to them (not that we didn't have a pretty good idea of who not to get attached to after the opening sequence). A lot of scenes seem to be going nowhere, and while you could argue that a statement in the real world is not edited for brevity, build-up, comic relief, or introducing characters any more than the "raw material" shown in the Blair Witch Project, a simple lack of dramatic editing does not an "art" movie make. All in all, I found Glengarry Glen Ross(!) both more disturbing, and more artistically pleasing.
The film is not shown in sequence. While this has been popular in, say, Pulp Fiction and artsy in The Wall, it is more of a case of Hitchcocks's "biased flashback" in this movie -- we get to see different takes on the same events. Unfortunately, this does not make relating to the characters any easier.
What else? A lot of weird-sounding accents, and a nice ending, particularly in conjunction with the "one year later" cut scene which, like almost all of the cut scenes featured on the DVD, should have remained in the movie. All in all, it is tempting to say that this film had the look and feel of a production for British TV, but with shows like Cracker (or even UltraViolet), that would hardly seem fair.
On a less serious note, rather than to discuss some plot-holes that cannot be discussed without spoiling, I'll just seize the chance to say that how Invisible Eyebrow Girl found the Oasis Clone that much more attractive than the Morrissey Clone is beyond me -- he had less of a hairdo going into the hole than the others did on their way out. : )