Just finished Martyrs. Damn, that film was ****ing brutal. Obviously the second half was really hard to watch, so haunting and sadistic. Really takes you to the depths of evil that humans are capable of. Honestly though, it didn't have quite the effect on me that JD described. No doubt it was a very good film, but I don't feel as if my soul has been forever changed lol.
Maybe I'll watch it again in a few years, see how it affects me then.