In the second sequel to 'Alien', Officer Ripley (Sigourney Weaver) crash-lands on a mining colony planet worked by convicts. While coping with the difficulties of being the only woman on a planet populated by hardened criminals, Ripley comes across evidence that her nemesis, the resilient alien, may have accompanied her there.

Lt. William Somerset, a burnt-out veteran cop, is on the brink of retirement. Forced to train his ambitious and eager replacement, Somerset is teamed with Detective David Mills on an investigation that draws these disparate cops deeper and deeper into the twisted world of a cunning and meticulous criminal.

He is methodical, exacting and grotesquely creative. He is known as John Doe and he is the most vicious serial killer alive, fashioning murders based on the seven deadly sins.

As each new victim is discovered, the detectives must combine their collective experiences to track the trail of a killer bent on seeking attrition for society's sins.