A college campus becomes the epicenter of a terrifying situation when an experimental virus breaks loose. The virus, initially developed as a potential cure for brain damage, has unforeseen side effects that have disastrous consequences for a group of unsuspecting students. At the center of this nightmare is Sam Nash, a young man who unexpectedly finds himself at the heart of the outbreak after his friend falls victim to the virus.

As the infection begins to spread, it becomes clear that it is causing aggressive and murderous impulses in those it infects. Sam, along with his girlfriend Lauren, must navigate a landscape that has quickly descended into chaos. With their fellow students turning into violent threats, they must fight to survive while desperately seeking a way to stem the tide of the virus that threatens to overrun the campus—and possibly beyond.