From Within Reviews
There was a good amount of gore and violece, and the jump moments never became annoying like they do in many horror movies. I just wish there had been at least a few halfway normal Christians to balance out all the insanely evil and violent ones that were portrayed here. From Within stands alongside The Gravedancers as my favorites of the After Dark series.
I wanted to like this movie, after all, the whole doppleganger idea was creepy and the death scenes had just enough gore to make me sick to my stomach. There was just something about the acting from the whole cast that either didn't move me because there wasn't enough show of the right emotions or were over-acted to the point of annoying.
What also may be the greatest thing about this movie (sarcasm, yes) is that during the credits they keep showing doom-laced images for people's fate while cutting to really cheery and chirpy alt rock crush music.