After Effect (2012)
Plot: Desperate for quick cash, a group of college students signs up for what they believe is a routine, paid medical research study. The promise of a $1,000 paycheck for a few days of observation seems too good to pass up. However, once they are locked inside a secure facility, they discover they are actually human guinea pigs for a top-secret U.S. military experiment. The subjects are exposed to a chemical weapon—a gas designed to turn soldiers into mindless, hyper-aggressive killers. As the gas takes effect, the students begin to mutate and turn on one another in a blood-soaked struggle for survival, while the military observes the carnage from the safety of a control room.
