Quarantine director John Erick Dowdle and co-writing brother Drew wisely stick close to the told-from-the-cameraman's point-of-view template of the terrific original, though they add a few fine flourishes.

Claustrophobic, jittery at times, and electric in pace, Quarantine is a stripped-down bloody thrill ride that -- while certainly not catering to everyone's tastes -- should satisfy gore-hounds looking to step up their theatrical horror cuisine beyond the usual creepy little kid rehashes.

Give Quarantine credit: Without resorting to computer-generated monsters or supernatural explanations, it uses consistent logic and confinement to find new ways of being scary.

The template is familiar, but Quarantine delivers the heebie-jeebies with solid acting and perfectly calibrated shocks.

Dowdle manages a few nice shocks and some neat moments of pitch-black gallows humor, but Quarantine nevertheless feels awfully familiar, and it grows less convincing with each passing moment. At its worst, it abandons realism entirely and flirts with gory kitsch.