Invasion
What is Invasion about (plot, summary)
Small rocks fall from the sky which, when touched, trigger a latent
virus that has always existed in humans and begins mutating them into an
alien species. Taking advantage of its hive mentality, the aliens are
absolutely dedicated to transforming every human on Earth and do so with
alarming swiftness. Only a small group of humans remain who have the
medical knowledge to devise antibodies to reverse the effects of the
virus.