I can't count how often the two main characters acted dumb in this movie, but I still suffered for these weirdos. The stage is as simple as can: A deep pool, pumped out, at first 1 and then 2 dumb people plus 1 crocodile. Fading out that the crocodile might kill a person in some minutes, there were tough moments. I did like the production by building up suspense with minimal things like a ringing cellphone or a dog taking notice of them both. There are so many little things to notice that it makes the (tolerant) audience shiver with impatience of what happens next. A more sober audience will only count the dumb fails of the two protagonists. So I would recommend that movie to an uncritical audience, which just wants to have some entertainment. It has a wicked idea I like.