Although it may be unbelievable to many, the film is built from humor; from a very dark comedy whose virtue is precisely that from irony it makes a very strong social criticism to, and look at the paradox, those puerile and moralistic conceptions of part of society.
I do not understand why people insist on making laughter something trivial and empty with all the critical potential it has had for centuries.
The tone of the film is clearly comic, but not the goofy and crude comedy, but a comedy that is sustained by the implausibility of the medical ordeal that the main character has to go through so that a stiff and stigmatizing society will take him seriously in his discomfort.
And yes, the closer the film gets to the end the tone gets darker and darker.
It's a terrific film and totally recommendable, which, it would be a mistake to watch from solemnity.
And beware, because that doesn't mean that they are making fun of the situation but of the absurdity that reality can result.



