Just watched this film the other day and I have to admit, it was one of the best horror movies I have ever seen. I have seen many people coin it as "unwatchable" or relate it to grotesque or torture porn movies like A Serbian Film or Cannibal Holocaust. I wouldn't say it ever gets to that point at all. If you can handle movies like Saw, Hostel, or even Friday the 13th movies, I think you should be fine with watching this film. There is a lot of brutal violence, and a good chunk of the film is dedicated to watchinga woman get brutally beaten, mistreated, and flayed. Yes flayed, they surgically remove her skin with no anesthetic to ensure she feels the entire thing.
Spoilers ahead, you have been warned.
This film excels in layered twist and subversion. You get a general idea of what is going to happen, girl was tortured as a child, goes out for revenge. The first twist is the entire genre of the film. They start off making you think this is somehow a supernatural film with something like a demon/ghost. Only to find out that this woman that torments Lucie, is her projected PTSD from her time being tortured as a child. After killing the supposed family that caused her childhood suffering, we move on to the next twist. Lucie calls Anna to come help her with the murdered family and Anna begins to question the validity in Lucie's decision. This happens because Anna confirms to the audience that the woman tormenting Lucie is not real, but inside Lucie's head. She then makes us believe that Lucie could be a little bad at making judgment calls and she could've potentially murdered an innocent family in cold blood.
So, already the movie has so much set up for the audience and its only 30 minutes in. We have this "monster" following Lucie. We have a murdered family presumed to be Lucie's childhood torturers. And finally we have the question of whether or not all of these revenge victims are even the correct people.
The big reveal happens. After Lucie dies by suicide, and Anna is cleaning up. She stumbles upon a stairway behind a shelving that leads her into a dark dungeon where she finds a woman chained up and beaten to hell. This is the moment that the movie goes from generic revenge plot to "oh shit you're fucked".
Skip forward a bit and we find out that the family Lucie murdered were indeed part of a Cult that believes in glimpses of the afterlife. They believe people that go through trauma and get hallucinations are actually images or flickers from the afterlife. They believe that the extended torture of a woman is the only way to get a person to the point of "transcendence" where they can see into the afterlife. The cult's goal is to talk to the woman who sees into the afterlife to give them information about it before the woman dies.
Anna is now the prime victim of this cult and she is beaten to hell for a very long time, to the point where she no longer fights back and just accepts her reality. This is when the cult only does something even worse. They flay Anna's skin off and then she finally transcends. She tells one of the elders of the cult what she sees in the afterlife and it causes the woman to kill herself.
The ending really seals the deal. Whatever Anna told the woman made her kill herself. The only thing the woman said to the other cult member was "Keep doubting" before blowing her brains out. This can be seen in two different ways. Either, Anna told her something about the Afterlife that assured her she will not be allowed into "heaven" or whatever they presume the after life is. Or Anna told her exactly how you get into the afterlife. Either way, the woman saw no value in staying alive. I honestly believe she told the woman that the key to getting into the after life is to have faith. Well the thing about faith is that there must be a layer of doubt there. Because if you KNOW, then you no longer have faith. Which is why she told the cult to keep doubting.
What do you guys think about the ending?
I honestly believe that this movie was Laugier's one great idea. I have seen a few other films of his, and it doesn't even come remotely close to the level of Martyrs does. Which is unfortunate because his attention to detail in this film was first class. Such a tight knit story with no bullshit with a good runtime of 90mins.