It doesn't really weork as film, tale, or entertainment piece. There really just isn't enough going on, and the life of a cleaner looking for a strange woman's son does not a story make, even if there are a palette of small details tacked on to add some depth and breath.
Its a very low key story with most of the characters having little or nothing to add to the proceedings. I'm not even sure why the films is called the cleaner since he never actually does any cleaning, and aside from the opening scene, there isn't any reference to it, nor does it have any baring on the screenplay.
The performances are actually quite good and the characters do well with the roles they are given. In fact, I'd not say the film is bad, or even uninteresting, just that there isn't enough going on to flesh out a film, and the frequent periods where the screenplay creeps along at a snails pace make watching little more than a chore.
Truthfully, it's not that bad, but its lacking in some essential elements to make it interesting enough to watch. The unfortnate thing is that basically it is a good story and had a little more time and effort been spent to add some dimension, I think it could have been at least, a decent film.
Ok, I can't reccomend it, and were it not for the suspect 10/10 reviews listed here, I'd not have bothered in the first place. I think 4 is a fair score, 5 at a stretch on a generous day.