I'm kind of mixed on Martyrs. Unfortunately, not quite in a strong enough way to write up a good review.
I thought the first half was solid. It was thrilling and showed enough depth to make it more than an exercise in bloodletting and transgression. The second half, however, becomes more horrible and more "meaningful". I'm undecided if I don't agree with, don't understand or simply don't care about what it was trying to say with the last half. I'm definitely sure I don't care enough to spend much more time thinking about it.